This is the first time I've encountered this, but I'm running into invisible monsters (including their respective spawn portals) on Arena 5. Dying/respawning/wayshrining, etc., doesn't seem to help at all; when I return back, they're still invisible. I asked a guildie who was also doing vMA and he was NOT having any issues with invisible critters. I'm waiting to time-out the session to restart it to see if this continues. Has anyone else been running into this issue?
I've opened a ticket: 151222-001252