Movement Controller Intermittent Physics Issues + Slope Handling Problems

[vega]

Hello,

I've been running into some issues with the physics/movement controller and wanted to report them along with a reproducible example in hopes that we can get this fixed:

Issue 1: Intermittent Physics Breakdown on Game Start
Roughly every fifth or so launch of the game, the movement controller completely breaks down, and characters ignore or clip through walls and slopes. Restarting the game usually fixes it, but it keeps happening.

Issue 2: Slope Handling Causes Ground State Flickering
On moderately steep (but still walkable) slopes, like clipped stairs, the controller rapidly bounces between "on ground" and "in air" states. This causes jittery movement and breaks any logic that depends on a stable ground check.

Steps to Reproduce:
I've attached a stripped-down version of my project source code that demonstrates both issues. For Issue 1, you may need to restart the game a few times to trigger it. For issue two, just run the game and try to walk on the taller, steeper slope.

Any insight or help would be greatly appreciated. Happy to provide more details if needed.

Thanks!

mesa - stripped.7z