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cant play on a instance #5755

@vanillaicecreamcone

Description

@vanillaicecreamcone

Operating System

Linux

Description of bug

the setup menu showed when i opened multimc on my desktop and the instance that i was going to open is now called "Unnamed Instance" and shows "Upgrade is required
MultiMC now supports old Minecraft versions and all the required features in the new (OneSix) instance format. As a consequence, the old (Legacy) format has been entirely disabled and old instances need to be upgraded.
The upgrade will create a new instance with the same contents as the current one, in the new format. The original instance will remain untouched, in case anything goes wrong in the process.
Please report any issues on our github issues page.
There is also a discord channel for testing here." when i click on it and i cant open it and it shows "Instance folder copy failed." when i press upgrade the instance this never happened before and i opened it just a few hours ago every other instance seems fine
also im on ubuntu and the instance is 1.7.10 with forge

Steps to reproduce

idk

Suspected cause

No response

This issue is unique

  • I have searched the issue tracker and did not find an issue describing my bug.

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