I tried to open the experimental efpse for the first time and it gives me error: "invalid credentials! The editor will be closed"
What's the problem?
you gotta launch it from the itch.io app
unfortunately if you want to then go and open the stable version, you will have to launch it from the itch.io app
basically whichever one you launched last from the itch.io app, that is the one that will get the correct credentials. you wont need to launch that version from the itch.io app any longer, but if you wanna switch you gotta launch the other one from itch.io app and bounce back and forth using itch.io app
i hope that makes sense