Fabric Instance doesn't start on new Modrinth App version

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When play is pressed, it turns into the loading icon, nothing happens, the instance doesn't show up in the instance list on the top right and when exitting out and reentering the menu for the instance the button that said loading says play again. No logs are generated.

Well, I have no clue what it was

but after repairing the instance and restarting the launcher it worked