I got softlocked in exactly the same spot, I think. (on version 1.1) It’s just after falling into the lava area way over on the right; head left and there’s an exit right there; jump up to the top part of the screen and go back right and I got softlocked. really fun game! I got 5/6 gems
edit: oh one more thing: I use the itch desktop app, but it wouldn’t install this game; I think you need to check the windows icon next to your .exe file in order to make that work