ViaFabricPlus and Particle Rain are not compatible and will cause the game to crash.

[TheWhiteDog9487]

General Information

https://dump.viaversion.com/1ef7944d07368c1b95e9626bf5570514ff7b63a7d4a831438dfa738539dbbb02

minecraft-exported-crash-info-2026-06-18T19-26-35.zip

Bug Description

Please refer to the "Steps to Reproduce" section below for details.

Steps to Reproduce

Install the following components:

• Minecraft 26.1.2
• Fabric Loader 0.19.3
• fabric-api-0.152.1+26.1.2.jar
• ViaFabricPlus-4.5.4.jar
• particlerain-4.0.0-beta.10+26.1-fabric.jar

https://modrinth.com/mod/particle-rain

Using this game profile, launch two game processes on the same computer with two different accounts. Process A creates a single-player world and opens it to LAN. Process B joins the world from the multiplayer game menu, and then Process B's game crashes.
I tried the latest build ViaFabricPlus-4.5.5-SNAPSHOT.jar downloaded from Jenkins, but the problem still persists.
After removing Particle Rain, the issue disappeared.
After removing ViaFabricPlus, the issue also disappears.

Expected Behavior

Enter the world normally, the game does not crash.

[Barvalg]

[florianreuth]

This should be reported to the mod author of particle rain instead, ViaFabricPlus uses normal API to register new particles and doesn't do any "hacky things" that the mod shouldn't support (as other mods might do the same).