Okay, so I am STILL having problems. Fire Wyverns are still not spawning with this mod installed, Aberrant Deino are STILL not laying eggs correctly (laying as packages in the nest that have nothing when picked).

I have, three times now, wiped all the mod files on my server and client (save for Reg, Center, Val folders), reinstalled the 33 mods and ONLY those 33 mods, made sure the order of Extension>Chasm is correct, checked for any incompatibilities by adding them back together in small groups, and yet- nothing. I see tons of Aberrant Deino running amok but no valid eggs in nests. And there's TWO classes for the Aberrant Deino, neither of which are working correctly. They're both packages. Even if I spawn them in tamed and breed, both the classes still drop packages with nothing instead of eggs.

If I have this and Chasm installed only, I still get no Fire Wyverns, no Aberrant Deino eggs, and I haven't even checked out the Rock Drakes yet.

Still having these issues. I've done a total wipe of the mod folders, again, months afterwards. At this point I'm going to give up. I want it, purely for the aberrant Deino, but with them not laying eggs for me to grab, it's not worth even having them around.