guild dungeon run low level

[luxlunae]

I just did a run of ST with four toons in the same guild (level 49 and 50) as well as a tank that was level 60 and did NOT get the weekly dungeon guild challenge completion when we finished.

Was the problem that the tank was too high or that I only had four from guild? Anyone know?

Another problem could have been that I didn't queue for the dungeon, I ran there. It does say I'm in a guild group (at least the dungeon flag has my guild icon on it)

edit:

My current theory is the level 49 part. the LFG levels for it are 50-60 so I'll try again at 50.