This problem was so bad that I gave up using Band in a Box for composing songs and only used it as a rehearsing backup band with my guitars and midi keyboard. When I tried to record my keyboard to the melody track, I got no midi signal coming through, or it worked sporatically once in a while. This was going back to when I bought BIAB 2017.
The solution was to start from a new song file to which I added a melodist song, then recorded to the melody track from there. Now the process works correctly every time. So my problem was with my old song files, some of which dated back ten years or more that were re-saved through multiple versions of BIAB as I kept working on them. These files became corrupted or incompatible through newer versions of the program. I'm glad to be back starting songs in BIAB instead of starting from scratch in Studio One 4.


Band in a Box 2024 build 1109, Studio One 6.52, AMD 3900X, 32gb ram, Windows 10 Pro 22H2 64 bit, Behringer U-Phoria UMC1820, Yamaha CP33, TriplePlay midi controller

https://www.youtube.com/channel/UCkzi0yL2slMhPVCxc9E9usA