I have same forms T4, T5 and T220, and have the same message, locked forms I paid 2 times, thinking it was my issue so I restarted.
I called and with screen sharing, we found the T5 was the issue blocking it. Customer service told me ALOT of people are stuck too. If I removed the T5, it became unlocked and I could have continued to file. They said they have no clue when this would be fixed and can't file without the T5 so STUCK! It better be fixed before the deadline!
