OK, this isn't just a bug that resolves itself the next time you enter the game. It corrupted my save apparently.
If you want to try editing the save data directly, you’d be searching for a localStorage file in there. If you search for the string “exo_game” you’ll find some JSON with a “position” key. I suspect it has an infinite number in it. The programmatic fix I’d add in a hotfix would set them to sane default values like (0, 0, 0) for your coordinates and (1, 0, 0, 0) for your quaternion. You can try that manually if that makes any sense, but do make a backup first.
I wasn’t able to reproduce this by moving around but, with the right console commands, I was able to get the game into a similar state which corrupted my position and made it impossible to load my save. So I can issue a hotfix later tonight that will correct this and allow you to safely load into your save without data loss.
I’ve also identified a few items related to rotation that might be the root issue, but I need more time to understand the math and fix. That will be part of the v1.1.0 post-jam update within the next few weeks.
Thanks for identifying this bug, as well as your patience and understanding.