no excavation chest after its complete

Bug report.
5 different encounters in one map. I completed all of them except boss and expedition. I defeated boss and I kept the expedition for last. After completed last encounter expedition, all excavation chests have disappeared and you could not open them. big pop up map complete and thats it. no chests after completing the expedition.

EDIT: it is irrelevant, i had frail treasures. this thread is pointless

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Offo11#1433 wrote:

Bug report.
5 different encounters in one map. I completed all of them except boss and expedition. I defeated boss and I kept the expedition for last. After completed last encounter expedition, all excavation chests have disappeared and you could not open them. big pop up map complete and thats it. no chests after completing the expedition.

Frail Treasures atlas passive?