Based on what you’ve told me, your birthday is correctly set in the TR website, is that right? It just does not line up in the app itself?
If that is the case, would you mind sharing your time zone with us? I suspect that is the root of the issue.
The good news here is that your birthday is not used for anything except estimating your starting FTP, and since you are both past that stage, having an incorrect birthday will not affect your training in any way. We want to sort this out nonetheless, and I look forward to digging into this issue with you 