I updated my BB to the latest build. When runnjing for the first time I get an error during the build.
I have tried Re-installed Restoring the entire RealTracks folder from a backling BB Restoring BB EXE from backup Restoring the entire BB folder from a back Restored my system from a back
I updated my BB to the latest build. When runnjing for the first time I get an error during the build.
I have tried Re-installed Restoring the entire RealTracks folder from a backling BB Restoring BB EXE from backup Restoring the entire BB folder from a back Restored my system from a back
I'm still getting the problem when I rebuild
I'd be grateful for some help.
This problem might be because of a corrupt file
BIAB should have handled such an error more gracefully, but it appears that is not the case.
The problem may be with corruption in the file: "1_Piano VT 2 C (with melody 1).mgu", but I don't seem to have this file on my system.
I would report this to PG Music Support, and reference this thread, explaining what you have already done, and ask for a solution.
BIAB & RB2026 Win.(Audiophile), Windows 10 Pro & Windows 11, Cakewalk Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Session Keys Grand S & Electric R, Kontakt, Focusrite 18i20, KetronSD2, NS40M, Pioneer Active Monitors.
Close Band-in-a-Box, and rename your bb\Preferences folder to Preferences_old. Then launch Band-in-a-Box and try rebuilding again. Does it still happen?
Andrew, you almost gor me exceited there, but no, its just the same. There isn't anything I haven't changed and still the error comes up. I have emeiled the exception details to your support.
I used the automatic process from the error and this sent it to
support@pgmusic
I can't attach a text file here and its a bit long for a comment. If you want me to send it direct please let me have your email address.
Here is the start:
An exception error has occurred. You can continue to use the program but should likely save your work and reboot program.
Access violation at address 0000000000413E6C in module 'bbw64.exe'. Read of address 0000000000004E21.
------------------------------------------------------------------------------ Band-in-a-Box Version 2025 (1128) Exception log with detailed tech info. Generated on 12/04/2025 06:23:02. You may send it to the application vendor, helping them to understand what had happened. Application title: Band-in-a-Box® - NONAME.SGU Application file: F:\bb\bbw64.exe ------------------------------------------------------------------------------ Exception class: EAccessViolation Exception message: Access violation at address 0000000000413E6C in module 'bbw64.exe'. Read of address 0000000000004E21. Exception address: 0000000000413E6C ------------------------------------------------------------------------------ Main thread ID = 21264 Exception thread ID = 21264
I used the automatic process from the error and this sent it to
support@pgmusic ...
A valid email address would be support@pgmusic.com
BIAB & RB2026 Win.(Audiophile), Windows 10 Pro & Windows 11, Cakewalk Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Session Keys Grand S & Electric R, Kontakt, Focusrite 18i20, KetronSD2, NS40M, Pioneer Active Monitors.
I would like to go back to the 2025 version prior to the 1128 build. Unfortunately I used the instrall manager and don't have a copy. Is there a way I can get access to it?
Thanks we got the file. Yes, I agree you should try the previous 2025 build. To do this, you simply need to install the patch over top (it will tell you that you are installing an earlier build, and can just say okay).
Next it will take a little bit of troubleshooting. Duplicate your Styles folder so you have a backup of your full Styles folder. Next, open the Styles folder in Explorer and sort by date modified (List or Details view is easiest) (1) Remove all files dated within the last year (or move them to some temporary folder). Try rebuilding (fast rebuild). Does the error still happen? (2) Repeat but remove all files dated within the last six years. (3) If the problem still happens remove all except for the ZZ* styles. Let us know the result.
Hi Andrew, Well ... I went through all the styles methodically removing them by year until I was left with only the ZZ styles and STILL the error appeared. In desperation I tried the same with Realtracks. By the time this process was complete I was sick of seeing the error message and decidided on the nuclear option.
I renamed the bb folder as bbOld and did a full install of 2025 from Install Manager.
Everything is working now as exepected..
I then added in all me additional user stypes and songs. Tested again and all OK.
So, the problem was clearly inside that old BB folder, but where? I don't care now.
One thing that did puzzle me though, When I was initially trying to isolate the issue, I tried the 32 bit verion. This version complained about activation and that I didn't have a valid ticket! Anywqay, it still let me open the application and the styles rebuild was sucessful, with no error problem. This was going to be my workaround.
Why was I not able activate the 32 bit version and why did it not see the error that the 64-bit version did.
Oh, strange! Okay glad you have been able to fix it! Regarding activation, there is no 32bit version of 2025, so that would be an older version - likely 2024 - that you haven't activated previously.
And that's probably why it didn't find the error. I noticed the icon points to bbw.exe and the (dated 2024) when opening it shows 2025 32-bit, but I'm guessing that is how it behaves because this was a first time 2025 install. I can delete that icon from the desktop
Oh, strange! Okay glad you have been able to fix it! Regarding activation, there is no 32bit version of 2025, so that would be an older version - likely 2024 - that you haven't activated previously.
Andrew:
I clicked on BBW.EXE and it opened up the 32bit version and I show it activated. (1) Is it ok to deactivate the 32bit since I never use it and it won't affect the 64bit version that is activated under a newer serial number when I upgraded to the 2025 version and (2) can I delete the following files?
BBW.EXE BBW2_32.exe BBW4_32.exe
BIAB2026 Windows 10 Pro (Never Windows 11!) WA6NCB
And that's probably why it didn't find the error. I noticed the icon points to bbw.exe and the (dated 2024) when opening it shows 2025 32-bit, but I'm guessing that is how it behaves because this was a first time 2025 install. I can delete that icon from the desktop
Perfect - you should only need the 64-bit shortcut (bbw64.exe)
Originally Posted by Joseph Land
I clicked on BBW.EXE and it opened up the 32bit version and I show it activated. (1) Is it ok to deactivate the 32bit since I never use it and it won't affect the 64bit version that is activated under a newer serial number when I upgraded to the 2025 version and (2) can I delete the following files?
BBW.EXE BBW2_32.exe BBW4_32.exe
1: Yes - however this will affect the 2024 version (both 32-bit and 64-bit), so if you still use 2024 on the same computer you should not deactivate. 2: We advise against deleting any files from your bb folder.
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202 New RealTracks Released with Band-in-a-Box 2026!
With Band-in-a-Box® 2026, we've released 202 incredible new RealTracks (in sets 468-488) in a variety of genres—featuring your most requested styles!
Jazz, Funk & World (Sets 468-475):
Our new jazz, funk & blues RealTracks include a groovin’ collection of RealTracks and RealDrums! These include more requested “soul jazz” RealTracks featuring artists Neil Swainson (bass), Charles Treadway (organ), Brent Mason (guitar), and Wes Little (drums). There are new “smooth jazz” styles (4), which include a RealTracks first: muted trumpet, as well as slick new smooth jazz brushes options for drums. Blues lovers will be thrilled—there are more “classic acoustic blues” styles, including guitar (5), bass (4), and drums (10) with blues master Colin Linden, featuring understated and tasty background acoustic soloing, plus brushes drums and acoustic bass. There are also new electric blues RealTracks, including electric blues with PG favorite Johnny Hiland (3) and soulful electric slide guitar from Colin Linden (4). If you love funk & gospel, there are great new options this year, including gospel organ (3) from Charles Treadway, as well as new funk, tango, and rock ’n’ roll drums (3) and bass (1). And for big, bold arrangements, we have uptempo soul horns (4) featuring a three-part hip horn section with options for a full mix or stems of each individual horn — plus an accompanying rhythm section (4) of drums, bass, guitar, and electric piano!
Rock & Pop (Sets 476–482):
Our new rock & pop RealTracks bring a powerful mix of requested favorites, fresh genres, and modern chart-inspired styles! We have more of our popular “Producer Layered Acoustic Guitars (15)” featuring Band-in-a-Box favorite Brent Mason. We’ve continued our much-requested disco styles (10), and added new Celtic guitar (5) with a more basic, accessible approach than our previous Drop-D or DADGAD offerings. There are also highly requested yacht rock styles (17), inspired by the smooth, polished soft-rock sound of the late ’70s and early ’80s — laid-back grooves, silky electric pianos, warm textures, elegant harmonic movement, and pristine production aesthetics. Fans of heavier styles will love our new glam metal (13), capturing the flashy, high-energy sound of ’80s arena-ready guitar rock. We also have a set of rootsy modern-folk rock (18), with a warm, organic sound combining contemporary folk textures and driving acoustic strumming. And we’ve added lots of new modern pop styles (16) — the kinds of sounds you’re hearing on the radio today, featuring exciting new drums, synths, and cutting-edge RealTracks arrangements.
Country, & Americana (Sets 483–488):
Our new country & Americana RealTracks deliver a rich collection of acoustic, electric, and roots-inspired styles! We have new country pop (9) with legendary guitarist Brent Mason. There is also a potpourri (14) of bouzouki, guitars, banjo, and more, perfect for adding texture and character to contemporary acoustic arrangements. We’ve added funky country guitar (5) with PG favorite Brent Mason, along with classic pedal steel styles (5) featuring steel great Doug Jernigan. There are more country songwriter styles (8) that provide intimate, rootsy foundations for storytelling and modern Americana writing. Finally, we have “background soloing” acoustic guitar (12) with Brent Mason — simpler, but still very tasty acoustic lines designed to sit beautifully behind vocals or act as a subtle standalone solo part.
And, if you are looking for more, the 2026 49-PAK (for $49) includes an impressive collection of 20 bonus RealTracks, featuring exciting and inspiring additions to add to your RealTracks library. You'll get new country-rhythm guitar styles from PG Music favorites Johnny Hiland and Brent Mason, along with modern-pop grooves that capture today’s radio-ready sound! There are also new indie-folk styles with guitar, bass, 6-string bass used as a high-chording instrument, acoustic guitar, and banjo. Plus, dedicated "cymbal fills" RealDrums provide an added layer that work very well with low-key folky styles with other percussion.
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-For Pro customers, this includes 27 new RealTracks and 23 new RealStyles.
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MIDI Styles Set 92: Look Ma! More MIDI 15: Latin Jazz
MIDI SuperTracks Set 46: Piano & Organ
Instrumental Studies Set 24: Groovin' Blues Soloing
Artist Performance Set 19: Songs with Vocals 9
Playable RealTracks Set 5
RealDrums Stems Set 9: Cool Brushes
SynthMaster Sounds Set 1 (with audio demos)
iOS Android Band-in-a-Box® App
Looking for more great add-ons, then upgrade to the 2026 49-PAK for just $49 and you'll get:
20 Bonus Unreleased RealTracks and RealDrums with 20 RealStyle.
FLAC Files (lossless audio files) for the 20 Bonus Unreleased RealTracks and RealDrums
MIDI Styles Set 93: Look Ma! More MIDI 16: SynthMaster
MIDI SuperTracks Set 47: More SynthMaster
Instrumental Studies 25 - Soul Jazz Guitar Soloing
Artist Performance Set 20: Songs with Vocals 10
RealDrums Stems Set 10: Groovin' Sticks
SynthMaster Sounds & Styles Set 2 (sounds & styles with audio demos)
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