I've encountered this a lot time ago. Well, when I create a JJ2 level, there are several values for Ambient Soud which do not work. The values are 53, 65, 110, and 111. When I go to test the level, the first two tell me "Out of Memory", the third says that "Fatal Error in fileRead on file "Anims.j2a", error: Input past end of file" and the last says "The Animation library file "Anims.j2a" is incomplete, corrupt or of an unknown version".
Is there something wrong with the JCS, the Anims.j2a, or the JJ2 itself?

And another question: What is this 1.20 -> 1.23 Patch for? I mean, everywhere they just say you should get it, but I just can't find what it really does.