Table calculations and Data Densification would not impact the creation of a TDE, both are evaluated later.
If the data is in the source table, but is not in the TDE, then that sounds like an issue for Tableau support.
If you would like, you can email me, found on my profile, and we can setup a screen session to walk though your situation together and see if there is a solution.
thank you for the rapid answer. I figured out the root cause of my issue was missing metadata.