I have a question. Your Fedora, is it 64bit or 32bit?
Still getting the segmentation fault.
"$ ./RD_Linux64
CREATING PHYSICS 2D THREAD
STARTING PHYISICS 2D THREAD
DONE PHYSICS 2D THREAD
Segmentation fault (core dumped)"
I am not as familiar with Godot as I'd like to be, but I've not run into this problem with other games made in the engine like Tanks of Freedom or Dolphin Island 2.