Ok here’s another test to reproduce.
Press and hold the Up Arrow Key on keyboard to start firing.
At sametime you hold Up Arrow Key and firing press both the A and W keys (all 3 keys), this is supposed to rotate the ship to face the upper left direction (diagonal direction) but it doesn’t.
Now while still holding the Up Arrow Key press D and W at sametime (all 3 keys), see how it faces the correct direction (diagonal direction) while firing?
It will rotate the ship to face any direction as long as not firing, but if you use that combination of input it won’t fire.