Unable to start any Minecraft modpack instance

[ameadows117]

Please confirm the following.

• I checked the existing issues for duplicate problems
• I have tried resolving the issue using the support portal
• I have ensured my Modrinth App installation is up to date

What version of the Modrinth App are you using?

0.13.12

What operating systems are you seeing the problem on?

Windows

Describe the bug

When starting a Minecraft instance, the app does absolutely nothing—not even a new process is created.

Now I can't play my game.

Steps to reproduce

1. Open Modrinth App on Windows.
2. Navigate to any Minecraft instance, from any Modrinth App GUI interface.
3. Attempt to open said instance.
4. Watch Task Manager, or otherwise monitor processes, and note that Minecraft doesn't even attempt to start.

Expected behavior

The mouse cursor indicates work, new Java process created, Minecraft eventually opens.

Additional context

No response

[siriorigel]

Same issue here, tried creating a new instance with a modpack and launching it, the window pops but the game crashes right away. This is the last log that gets outputted (even after waiting 5+ minutes on a non responding window).
[22:31:23] [Render thread/INFO]: Backend library: LWJGL version 3.3.1 SNAPSHOT
Regular instances work, it's just modpacks.

[ameadows117]

I was able to start them again just now. Not sure what happened.

[siriorigel]

I still have this issue. Even after freshly installing a modpack it won't work. For reference, I'm using Linux 7.0.3-1-MANJARO, and the app version is the lastest available (0.13.12). It looks like an error with the wayland compositor though because when the game crashes it outputs this
GLFW error 65548: Wayland: The platform does not support setting the input focus. Please make sure you have up-to-date drivers (see aka.ms/mcdriver for instructions).