1.20.1 Neoforge instance failed to start

[qiubobo114514]

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?

0.9.2

What operating systems are you seeing the problem on?

Windows

Describe the bug

I made a modpack using NeoForge as the modloader, but during my testing, I found that it always inexplicably stopped running after starting. Even if I tried Repair Instance, it still stopped running inexplicably. I don't know what to do. There are only a few mods in my modpack, but after checking, I found that none of them have any problems. I also checked the logs, but still couldn't find the problem.

This bug caused my modpack to be unable to be tested.

log:
https://mclo.gs/2wFQwwA

Steps to reproduce

1. Create a new instance of Minecraft version 1.20.1 Neoforge
2. Start the game
3. Waiting
4. The window appears and then disappears

Expected behavior

Can open the 1.20.1 Neoforge version of Minecraft and start playing and testing normally.

Additional context

No response

[qiubobo114514]

Okay, I just checked the logs and found that it was caused by a mod conflict, which has now been resolved.