PSJahn

Same issue here

The imports are different after 1.19.3-ish, this pull request solved this exact issue: https://github.com/Hexeption/MCP-Reborn/pull/263

Check under "other" in gradle tasks. there is one named "reobfjar". Haven't tested this but might be a solution to your problem

> I believe this is a bug, it is trying to write to the `actions` field instead of the `entries` field because the `actions` field happens to be a `Collection`...

can confirm. great idea.

Use Forge MDK instead of MCP.

Since this is a bug in vanilla, I do not think the Fabric API should tinker with it as it shouldn't modify the behavior on its own.