I've looked into this a bit, but I haven't been able to reproduce the crash yet.
Can you build the demo project with your copy of GB Studio?
Are you using any other plugins in your project, or have you ejected/edited the engine?
Are you using GBT Player (.mod files) in your project?
I fixed an issue that was causing games to crash when they used both Fade Street and GBT Player at the same time. That fix is in the new version (12.1).
If the new version doesn't fix your problem, let me know and I can keep looking into it, but so far this is the only type of crash I've been able to replicate.
So, it didn't fix my issue and now I'm even more confused.
I tried to open the project included with the plugin and it said it's for GBStudio 4.2.0 (from what I know the newest version is 4.1.3). I opened the project anyways and it mostly worked correctly.
When I put the plugin in my game it crashed and displayed a white screen like before.
Also, change from GBT player to hUGETracker doesn't help