Are you playing this via the itch launcher?
Viewing post in Little Bug (full version) comments
wondering why it still didn’t work when game placed in
~/games/littlebug/
I looked deeper. the issue was related to 2 similars folder names. On my system I get:
~/games
~/Games
so littlebug executatble got confused between those two
the good news is this little command fix the issue forever:
ln -s ~/games/itch.io ~/Games/itch.io
\o/