Scenario: You clear the 1. part of SoO with a raid of alts of your guild. Later on, you just switch one or two of the alts with main characters and clear again.
As the 8 alts already killed the bosses in flex mode, they are not eligible to win epic loot again for this ID in flex mode.
Question: Will the 2 mains now win loot for sure from every boss? Or will the 8 alts "roll" anyway but just win gold or something else if they were chosen again?