I run a server on Java with Fabric 1.17.1 (Fabric API + Lithium). I have the Fabric_Latest 1.17.1 jar, Origins Mod, Vanilla Tweaks, and Proximity chat.

I also have Bukkit: Stat Graphs, Mini Blocks, BedTeleport

My player has been having problems with her elytra. The game won't even let  her fire rockets from the ground. Mods and fabric loader are all up to date. No one else has had this issue on this server. (She's on a Mac, if that makes any difference)