Describe the bug

When going to create a new Singleplayer world, it will fail to load right after clicking "Create New World", saying it cannot copy packs, joining existing servers is fine, it only seems to impact creation of new worlds

Modpack version

5.3.0-beta.7

Launcher

Prism Launcher

Confirm

• This bug report is about an issue with the modpack itself, I have not modified the mods nor added any resource packs. If this is not the case, I know that I should post the issue to modpack's Discord support channel instead.

Additional context

(github didn't send the link in the additional context, so):
https://mclo.gs/uwIrIF5

Are you using datapacks? If so, can you confirme that you have not currently opened any of them? (E.g. if you open a zip in 7-zip, then no other program can access it).

only datapacks that are selected are fabric mods and minecraft itself (and can confirm i haven't opened any of them)

Okay. Please try restarting your computer though, just in case.

Can you still confirm the issue on 5.3.0?

No response, assuming fixed.