Zana Quest - Slay the corrupted monsters - Cannot Complete

There are no monsters left on the map. I've been up an down it multiple times and cannot find any monsters left on the map. Checked using the /remaining command and 0 monsters remain. I took some screenshots but don't see how I can upload them on here without having to put them somewhere else on the internet and creating a link to them. Bugs reports /bug (3,327,211,713) and /debug (2,064,010,038). 76/84 of the corrupted monsters have been killed. Map is the Pier Level 70 spawned by Zana daily quest, Rampage league. Area effects are - Players are cursed with Elemental Weakness and vulnerability, monsters are immune to curses, Rampage league stuff, and 60% more items. I'm not sure if you can get into my session or not but I'll stay in the instance overnight (for me) just sitting there.