Software update on my Ubuntu reverts back after reboot. Help!

There is an issue that I really find disturbing. I have been battling to run a successful GIMP updates on my Ubuntu machine. Used the software center to install the updates but when the system is rebooted, the update vanishes and GIMP reverts back to the old version.

The Updates is for GIMP 3.8.2 to update to 3.8.3. Updates would install successfully but goes back to 3.8.2 after reboot. It is on Ubuntu 22.04 LTS. Any insight on the possible cause of this and how does it gets fixed?