I too had this same issue. TT said I owed a penalty even though I am covered by the safe-harbor rules. Although I paid less than 90% of the current year's tax liability, I should have been covered by the fact that I paid at least 100% of 2022's liability (the 110% rule doesn't apply to me).
TT didn't even ask me or take into consideration what my tax liability was in 2022....
