I'm very new to Godot, so it's likely I'm making some simple mistake. I've done my best to look online and in the docs, but I haven't found anything.
My project is very simple. The main scene has a camera, a flat cube mesh as a floor, and a (space)ship. The ship is a RigidBody. It has six MeshInstance and a CollisionShape, all direct children of the RigidBody. The only change I've made to the project settings is to add some things to the input map and to set the default gravity to zero.
There's only one script file, and it's attached to Main2 (the root node of my scene). I've deleted a lot of stuff and I think this is the bare-bones script that will reproduce the problem. I've included the entire script file at the bottom of the post. If you press "Q" (bound to "gamerollleft"), the ship rolls left, and if you press "W", the ship pitches down.
The problem is: if I alternate Q and W quickly, the ship transforms as expected, but after about a dozen total keypresses, the entire ship disappears, and I get the following error:
0:00:05:0887 - Condition ' p_axis.is_normalized() == false ' is true.
C Error: Condition ' p_axis.is_normalized() == false ' is true.
C Source: core/math/matrix3.cpp:751
C Function: set_axis_angle
I have no idea what's going on. It's not always the exact same number of inputs, but it's usually at least ten. I assume I'm misusing some function or have set up my ship node wrong somehow, but I have no clue. Please help!
var yaw_rate = 30
var pitch_rate = 30
var roll_rate = 30
ship = get_node("/root/Main2/Ship4")