This is happening on both Vaniki and AB. Vaniki was yellow con mobs and AB was dark blue Vaniki level 60 & AB level 120 chars
Can you clarify what you're reporting as the bug? Are your characters capped on XP and you don't think it should show the percentage? Are your characters getting XP (as seen in the inventory window) but the chat message is wrong?
I'm getting AA experience, but the message is saying I'm getting 0% group experience, which is wrong. 0% should be if I'm killing greys. I'm sure a few days ago it was showing up at (bonus) which is now over. Or is the 0% now showing there is no bonus?
https://forums.daybreakgames.com/eq/index.php?threads/game-update-notes-september-21-2022.285539/ - Experience gain messages will now also display the percentage gained. This change currently only applies to regular experience (not AA).