What happened?

latest_5.log
crash-2023-02-03_11.09.30-client (1).txt

When i connect to multiplayer client crash.

What mod loaders are you seeing the problem on?

Fabric

What do you think this bug is of?

• Visual
• Recipe Lookup
• Cheat Mode
• Plugin Integration / JEI Plugin Compatibility
• Others

Relevant log output

[latest_5.log](https://github.com/shedaniel/RoughlyEnoughItems/files/10578129/latest_5.log)
[crash-2023-02-03_11.09.30-client (1).txt](https://github.com/shedaniel/RoughlyEnoughItems/files/10578131/crash-2023-02-03_11.09.30-client.1.txt)

When i connect to multiplayer client crash.

Anything else?

No response

By submitting this issue, I have included the necessary logs by pasting the contents into the correct location or attaching the file as an upload.

• Yes, and I did not use any paste services other than GitHub Gists.

By submitting this issue, I have confirmed my REI and REI's dependencies are up to date.

• Yes

most likely this happens with async search option

Same bug in Forge 40.2.10, Create 0.5.1.c, REI 8.3.564. HMCL tells me they are newest.

Turn off async is ok.

Not all mods are thread safe. Async search assumes that they are thread-safe.