Well, you’ve got me worried alright 
I’ve done two major rewrites before, and am not exactly looking forward to a third one, but you go gotta do what you gotta do. Thanks a lot for offering to lend a hand, though!
Edit: Ok, I’ve looked at it a bit. Seems like one of the big reasons for bugs is that 4.8 has chosen to connect up a few execution pins to the return nodes inside functions that were not connected before. For instance, this Destroy Spline Mesh function returns after only one segment of the spline mesh has been deleted. The same holds true for all such functions it seems. Deleting these new connections does at least solve some of the problems:
Edit 2: It’s almost working as before now. Seems like a reference to “self” had become disconnected from Unit_Parent when adding the pawn actor back into the Pawn Actor array after movement, as well as removing it after death. Still a few little hiccups, but it does fortunately seem like no big reorganization will be necessary.
Edit 3: Ok, I think I’ve got everything working as before now. I’ll do some more testing to be sure, and will make a conversion guide when I’m confident I’ve got all the bugs ironed out. I will not be sending the update to Epic, since it’s a preview build and the changes would screw up the 4.7 version, but converting should be quite easy for anyone who can’t wait to use the new 4.8 features with the toolkit.