let me put it this way. Unusual but not impossible. We have no access to your return so can't see what's changing.
Make sure that in your amended return any additional tax you paid or refund received with the original return is reflected. If you owed Turbotax does not assume it was paid. if this isn't the reason then you'll have to compare before and after returns and let us know what changed and we may be able to offer an explanation.
look at your 1040s line by line and tell us what lines changed. be sure to also look at schedules 2 and 3
