Cataclysm's Wake - stuck on investigate map

I got to end game and have cleared many T1 an T2 maps, but my quest just says "investigate corrupted map." I've already cleared 10+ maps and made no progress; is this a bug?

im having the same issues. done multiple maps. but still keep getting the " investigate the corrupted maps"

any idea of a fix anyone?

I think ive figured it out.

we need to keep exploring the map till we find a Map that is a BIG RED Corrupted Blob that is a corrupted. You need to use a waystone with 4 affixes on it to activate it

Do that and it completes the quest

Hope this helps anyone who is having the same issues.

Thanks. The quest description is shit... and I couldn't find anything clarifying (every source I found was talking about the quest for the old version of the game)