Hi @GameCult! I see I am not the only one completing the jam the last minute:)
I can feel your pain. I also started to work on an RPG game but had to change plans because Unity 2018.3 is buggy (at least for Mac). I encountered several big bugs before but new Prefab workflow was to good to say "no" to new Unity. This time I encountered major terrain bug: collider wasn't updating with mesh. You can't play an RPG like that:( So I had to make the game not as big as I initially planned to.