When in game, using any /luckperms command return '[L' per line for however many lines ought to be printed. When I run the command in console, the command runs like normal. I'm running on FTB Beyond 1.3.0 server with spongeforge 5.2.0 and minecraft 1.10.2

Which LP version?

filename: LuckPerms-Sponge-3.0.71.jar
it looks like the most recent version is .74, will update and and check to see if the problem persists.

updated and same problem persists.
list of sponge plugins:

• SpongeForge v2254-5.2.0-BETA-2262
• Nucleus v 0.27.0
• Nucleus Mixins v 0.25.2
• WorldEdit forge v mc1.10.2-6.1.4-dist
• FAWE v (unknown)

I've not changed the modpack in any other way and am updating sponge to see if that helps

Updating sponge had no effect on the issue.

Running:

• Forge 1.10.2-12.18.3.2254
• SpongeForge 1.10.2-2254-5.2.0-BETA-2262
• LP 3.0.74

So, my guess is it's an issue with your client or another plugin/mod which is messing with packets.

Ok, will do a check to see if i can figure it out and let you know what I find out. (time to start removing plugings)

Found it out. It's a mod in the pack called ChatFlow that was reading [LP] as a regex expression and deleting everything that came after i guess, I'm looking into changing the config to make it work. (This will be interesting because I've never used regex).

Am closing the issue regardless, as it's not a bug.