Going back to the start to check what level I was on deleted my progress. I was stuck on
square idk where rectangle was
4 point line thing
egg pit of spikes finish line
Not very creative given this is a common type of puzzle game, but it's quite enjoyable and it has good visuals and audio.
Viewing post in Sleeping Construction jam comments
Switching between levels does reset the levels themselves, but beyond that it should still allow you to select it again. The level you were stuck on turned out to be the most difficult with someone playtesting as well, but it's also the second to last.
This year's theme sadly was prone to giving ideas that turn out to be an existing thing.