Missing date values

1. What is the problem? Be very detailed.
In ODK aggregate front end i have two forms, one has data in it one does not. I am trying to copy all the data from one form to the other via back end (Phpmyadmin). All data is successfully migrated, however i have noted that all variable with dates are null in the front end (ODK Aggregate) but present in the back end. Kindly assist on how i can view the dates after i export using ODK aggregate

2. What app or server are you using and on what device and operating system? Include version numbers.
phpMyadmin 7.4.13

3. What you have you tried to fix the problem?

4. What steps can we take to reproduce the problem?

5. Anything else we should know or have? If you have a test form or screenshots or logs, attach below.