What is the sample rate of the existing file/song when this occurs?
Is it 24/48, 16/48, 16/44. or?
Sounds like it may be a mismatch in the system somewhere, like the file is 16/44 and you're trying to force ASIO to 16/48 or something similar
Also make sure the Windows bitrate matches the ASIO and the file; that one can hide and cause issues ..
Windows will sometimes assign a different audio driver if the ASIO device isn't turned on first (before RB is opened) here, which can get confusing.
Sound out put bit rate is set to; 2 channels, 24 bit, 48000 Hz Studio quality in Windows.
At this point I have not tried to use either program any further than just opening them after install. The error comes up as soon as Realband is opened, although I noted a style is pre-entered likely held over from the previous install. When I changed that style to something different, a new error came up, that I posted below regarding the GS wavetable synthesizer.
When I closed that error window, the ASIO Audio Drivers window opened and at that time had "None" selected for device. I selected the Generic Low Latency ASIO driver and the info at the bottom of the window populated with values, also posted below.
After closing the window just mentioned above, the yellow background error window appeared, this time back in its full length, as it was from the very beginning and immediately following that, the MIDI Driver Setup window opened, also attached below as the third notice in this process of opening RB.
When I selected GS wavetable and okay, the first error of the three notices posted so far reappeared, and keeps appearing each time I try to close the window. I then deselected (unhighlighted) GS wave and selected Re-Route MIDI playback to default Dxi/VSTi Synth and tried accept to close the window and am now getting the "No output driver selected, continue anyway?" notice.
I selected yes to continue, was immediately greeted by the buffer error that started all of this at which point I just closed the program and restarted it to the same cycle all over again.
At this point I decided to take a break on my trek down the "Rabbit hole" and make a cup of coffee. All I'm trying to do is record tracks from my horn, nothing magical.
Thanks for the input.