latest.log

Caused by: org.spongepowered.asm.mixin.transformer.throwables.MixinPreProcessorException: Attach error for forcecrawl.mixins.json:PlayerPose from mod forcecrawl during activity: [Transform -> Method updatePlayerPose(Lorg/spongepowered/asm/mixin/injection/callback/CallbackInfo;)V -> INVOKEVIRTUAL -> net/minecraft/class_304::method_1434:()Z]

It doesn't play well on servers from what I've experienced

Got it, I will make sure to add that server functionality as soon as possible.

If you install this mod on your client, it will work on a server. Currently, this mod doesn't have "official" server support. However, if you are on a server, this mod will still work, but it won't show you crawling. I may add this functionality eventually.