I have a large NSIS installer project which has recently started failing to compile with the following error:

Internal compiler error #12345: GrowBuf realloc/malloc(543160296) failed.

Note: you may have one or two (large) stale temporary file(s) left in your temporary directory (Generally this only happens on Windows 9x).

While this is large installer it is under teh 2 GB limit. I think the issue is the compiler running out of memory but wanted to see if anyone else has seen this before?

NSIS 3.1
WIN 11

I tried to compile on a second machine to make sure it was nothing local.

I have tried to remove sections of the installer to simplify the project and it did allow me to compile it but I’m trying to understand the root cause.