"Unable to export instance" when trying to export an instance

[4310V343k]

Operating System

Windows

Description of bug

When trying to export SkyFactory 4 instance i get an error stating "Unable to export instance"
There is nothing in the console
Other instances (vanilla, modded, curseforge modded) are exporting fine
Link to the zipped SkyFactory 4 folder: Click

Steps to reproduce

• Click on the SkyFactory 4 instance
• Press Export Instance on the right bar
• Press OK (notice how the suspicious .packignore file is created)
• Observe the error

Suspected cause

No response

This issue is unique

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

[NewoIsTaken]

Huh, I don't seem to be able to reproduce this problem. Are you on dev channel or stable?

[4310V343k]

On dev