Uh oh! I hope that bug you found doesn’t bite EMUUROM at any point.
I’ve encountered a few bugs in TIC-80, but nothing game-breaking, really. Mostly they’ve been behaviour of some editor or an API function changing in a newer version of the engine. I’ve reported the issues, and most have been accounted for.
A core problem in the development process seems to be that changes to the codebase are applied without rigorous testing. E.g., right now, a recently applied update to Lua version 5.4 has broken compatibility with some carts, and many hope it will be reverted soon… Oops!
(Naturally, this is only a problem in the master branch version. I’m perfectly content with the version of TIC-80 I’m using, 1.1!)