Describe the bug
Crashed during game launching

Video / Screenshots
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Version
Mod version and Minecraft version
1.19.2
grappling_hook_mod-1.19.2-1.19.2-v13.jar

Output Log
crash-2023-03-07_20.02.47-fml.txt

To Reproduce
If you can, steps to reproduce the behavior, e.g.:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Additional context
Add any other context about the problem here.

Looks like it's due to ItemProperties::register (called in ClientSetup::registerPropertyOverride) not being thread-safe, and Forge loading multiple mods in parallel. This is a pretty common error to make: Stereowalker/Survive#243, architectury/architectury-api#378, Infamous-Misadventures/Dungeons-Mobs#182. I'll take a stab at fixing it.