@gl.itch The combat is based on static movement/firing patterns. There's only one in the end of jam snapshot builds. The enemies in that will move up, down, left or right (cycling between those in a clockwise manner), and then use their second action point to fire straight. If you're moving for your second action point, you'll never get hit.
Did you manage to get any terminal output from when it froze? Is it possible that you jumped to the next system successfully, but it was uninhabited and so didn't trigger a comms screen (when this happens, you can just jump to another system)?