I can't seem to get the Animal_minimalis 2.4 crash to repro.
Were you trying to load an old saved sim (I.e. saved with a prior version) or did you create a new sim with the new version?
If the former, can you try doing the latter and tell me if it still crashes?
Either way, if you get a reproducable crash, can you upload the sim or settings file for me?
Thanks,
-E