Nothing regarding Mixins resolves. No fields, targets, methods, Injection points, references to sources, etc

[C0D3-M4513R]

Minecraft Development for IntelliJ plugin version

2024.1-1.8.0

IntelliJ version

2024.1.3 - Build #IU-241.17890.1

Operating System

NixOs 24.05

Target platform

Mixins

Description of the bug

When using Mixins in the context of MinecraftForge, nothing regarding Mixins resolves.

Both "Navigate to Source" buttons just don't work.
The mixin itself works.

Here is the commit adding mixins to forge:
kettingpowered/Ketting-1-20-x@6dac9fa
And here is the tree I used to test this:
https://github.com/kettingpowered/Ketting-1-20-x/tree/feat/mixins

This example is for 1.20.1, but you can also reproduce this on 1.21.

[ch1335]

me too at 1.21 neuforge, no auto completion