Internal Error, 1.20.1

Error: Unknown Log [#htplVUR] -

Either caused by MemoryLeakFix or Sound Categories, but I can’t tell why.

Not sure how to solve this, but one of your libraries is either missing or corrupted and I think it will even affect your vanilla instance:

[Render thread/INFO]: [STDERR]: [LWJGL] Failed to load a library. Possible solutions:
	a) Add the directory that contains the shared library to -Djava.library.path or -Dorg.lwjgl.librarypath.
	b) Add the JAR that contains the shared library to the classpath.
java.lang.UnsatisfiedLinkError: Failed to locate library: OpenAL.dll

Try looking up solutions for the “Failed to locate library: OpenAL.dll” error corresponding to your launcher and system.

Quick edit: possibly not coincidentally, I believe OpenAL has something to do with sound.

Perhaps updating to the latest version is the perfect choice

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