This bug applies to the deathmatch PvP found in club worlds. The effect persists even through death, lasting for the remainder of that PvP battle. A new PvP battle will properly initialize the current class's skills again.

Actions taken:
- Start a deathmatch PvP battle in a club world. (This bug was tested with the /testarena command in an arena located in my club "Seeds of Friendship".)
- At any point during the battle (including the starting countdown), open the class change menu with J and pick any other class.

Expected:
The new class's abilities would initially be on cooldown, but I should be able to attack and use abilities from the newly selected class.

Observed:
The new class's attacks and abilities are removed, preventing any attacks whatsoever. The only things that remain usable are the dodge roll (Shift) and the powerups that can be picked up (Q).