Hey, thanks for playing and taking the time to report those problems!
The first on seems to have been fixed on Godot's 4.3 version. It's on beta right now though, and when testing it, the web version didn't work because of a plugin I'm using. Once it's released and the plugin is working, I'll be sure to update the game, of course.
The second issue was happening because instead of checking if the player's pigeon was the common one, I was checking if it was equal to one random low tier pigeon. My bad!
Thanks again for playing and for reporting those issues.