I too was able to federal file successfully today 3/22/22. The federal accepted within a half hour. I used Premier CD. I believe it is safe to file now.
I had the most difficult and frustrating time filing my federal taxes this year. Although part of the problem is due to the IRS requiring Form 1116/Sch B so late in the year, TT did a horrible job communicating to us. TT has no excuse to have customers getting cell errors with no explanation, forms getting rejected by the IRS because of the carryover with no help TT support, and changing available dates 3 times without communicating why. Special thanks to @LarryDean and others for helping us solve the issues and avoiding others.
