FYI, I'm starting to work on the bugs identified in this thread.
Elite's issue with loading my evo sim was a corruption in the uploaded file itself when it was uploaded to the forum. I have re-uploaded the sim
here. Not a bug.
Testlund's corrupted save and Elite's overflow when using "transitory fluid" are the same issue, an overflow error in SphereCD().
Testlund's jumping bot and veggy counters were an issue with event handling updating the tray before the calculations had completed.
Shvarz's issue with snapshot saves and loads of robots was a problem in the hash checksum routine.
More details on these fixes can be found
here.
I will continue working on the rest of the bugs.
A buddy drop with these and a few other fixes is attached.