There is a major regression in the latest update. Applying a palette in a level with many animated tiles can cause a crash. This does not occur with the Jan 28 version. The behavior seems to be random, but it usually happened within 70 calls in the level I was using.

Demonstration
___test.j2l almost always crashes, ___test2.j2l never crashed (it has most animated tiles removed). Removing the destruct scenery events from the animated tiles did not change anything, but removing the tiles did. Editing jjPalette directly is not the culprit either (tried a new one, didn't help).

Maybe a bug tracker of some sort would be a good idea?