I got locked out of doing a Mastery rank test for unknown reason. I have drifter equipped which might be the reason because it is Mastery rank 24 test. I practiced it beforehand where it auto equipped Operator so I thought nothing of it, I just assume it wants you to use Operator so It didn't matter if I had Operator or Drifter because of the Auto equip. After the practice had finished I clicked Qualify to do the test and Rank up. Only for nothing to happen and the menu to close. When I clicked to qualify again I was hit with a message telling me to wait 24 hours before being allowed to try again. Notice, this is my first time trying to Qualify for Mastery rank 24 and the game thinks it's my second time. I have a video on what happens when I click to Qualify for the message but i don't know how to link it here.
