UPDATE: The issue seems to have been resolved with the latest update. All toon can finish the mission bow as the submit claim option shows again. On three of the toons I had to switch mining locations before I was able to mine. Nonetheless it is working now for all toon.
It seems every toon on my account is blocked from use the hundreds of claims I have from the damn gamble box RNG BS because of the Mining Mission Bug which makes it impossible to give the claim to the FDMAA Agent.