Mod Version:
1.12.2-3.4.7.2

Forge Version:
forge-14.23.2.2611

Link to crash log (if applicable):
full log: https://gist.github.com/mando222/86b7f9158296c2cd303a28f6bb4e5c41
Description:
This seemed to be related to #162 but not 100% sure. These log entries are a constant and repeating thing even when not causing a crash. I am still not 100% convinced this was the root of the crash but it is an issue.

Game crashed and on reload in the log there was

[21:24:35] [Thread-11/ERROR]: Source '8befe5ea-86a0-445d-be83-54ea03f54de7' not found in method 'play'
[21:24:36] [Thread-11/ERROR]: Error in class 'LibraryLWJGLOpenAL'

Nothing in the log indicating a sound engine crash. The above error you state above is possible though I would expect it to be rare. There are some interesting timing loopholes between the PaulsCode processing thread and the Minecraft processing thread.

Try the latest BETA. I put in some fixes for PaulsCode to address the crash, and additional logic to close down the timing loopholes I know of.

@mando222 Have you had a chance to try out the latest BETA?

Yeah just been testing. It looks to be resolved in the BETA. Thanks for the quick resolution!

Cool! Let me know if you run into any other issues.