Hello!

After updating Atum to 2.0.18 and using YUNG's Better Mineshafts 2.1.0 (Both on 1.12.2). Upon loading a world, the game crashes with the following crash report.

Downgrading Atum to 2.0.17 works. I see in the changelog for Atum that events to Caves & Mineshafts were added, so unknown if YNUG's Bettercaves is also affected by this.

crash-2020-09-18_22.17.44-server.txt

I was informed by the Author of the other mod to report this here.

Thank you for the report!
Unfortunately it's them who doesn't support the Forge InitMapGenEvent. It was added in the latest build upon request from another mod author.
https://github.com/TeamMetallurgy/Atum2/blob/1.12.2/src/main/java/com/teammetallurgy/atum/world/ChunkGeneratorAtum.java#L61

No worries! Thank you for your quick response.

private MapGenAtumMineshaft mineshaftGenerator = (MapGenAtumMineshaft) TerrainGen.getModdedMapGen(new MapGenAtumMineshaft(), InitMapGenEvent.EventType.MINESHAFT);

Can you use a reference to MapGenMineshaft or MapGenStructure here instead of MapGenAtumMineshaft?

I changed it to MapGenStructure, hopefully that did the trick. You can grab a build here: https://jenkins.girafi.dk/job/Team%20Metallurgy%20Mods/job/Atum%202/job/Atum%202%201.12.2%20Jenkins/105/ to check if it worked :)

Just tested that build. Works fine so far!

Alright I'll release a new build on CurseForge sometime later today. Remind me if I haven't.

Yeah. I haven't found an Atum Mineshaft as of yet. Hopefully this did the trick for real.