Quick answer: Use angle_difference(from, to) (or wrapf(diff, -PI, PI)) to get the signed shortest difference between two angles before applying it.
When a character rotating to face a point suddenly whips all the way around as the target crosses behind it, the angle math is not wrapping. Computing the shortest signed difference fixes it. Here is how.
How to fix it
1. Use angle_difference
Replace to - from with angle_difference(from, to), which returns a value in -PI to PI representing the shortest rotation, so 179 to -179 yields 2 degrees, not 358.
2. Wrap accumulated angles
If you sum angle deltas over time, periodically call wrapf(angle, -PI, PI) so the stored value never drifts far outside the canonical range.
3. Interpolate with lerp_angle
For smooth turning use rotation = lerp_angle(rotation, target, weight), which internally takes the wrapped shortest path.
Catching the ones you can't reproduce
The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.
Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.
This is where a tool like Bugnet earns its place. Its SDK captures every Godot error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.
Reproduce it once with full context and the fix writes itself. The hunt is the expensive part.