It does NOT warn you when you enter.

Regardless. The DF should state out right which member is too low, has penalty, didn't clear, or cleared his weekly. We should NOT have to guess who or resort to giving up and breaking the party.

There are people intentionally not telling anyone that they cleared so they can keep farming 1 chest parties hoping for loot. All this does is frustrate people and make everyone question why is SE incompetent and vague with the DF.