You’ve missed one key step that's in the guides: every time CC gets updated, you need to repatch it with GenP.
When CC itself is updated, make sure to allow the update to complete (even if the "Automatically keep Creative Cloud up to date" option is toggled off).
Once the update finishes, run GenP again to repatch the CC app. If you try to patch it before the update is complete, it might self-repair and undo the patching.
So, after updating the CC app, use the "Search" and "Patch" options in GenP, and that should fix the issue.
Also, if you see the "TRIAL/BUY" instead of "INSTALL", that's a strong indicator that the app has likely been updated and needs to be repatched.
This is especially true if you haven’t used the app in a while and it's been updated to the latest version, as shown in the Compatibility List.
Remember, updates to the CC app are mandatory for compatibility, and blocking Adobe Desktop Service in the firewall might not always work as expected.
If you run into any issues along the way, you can quickly fix them by using the Repair option in the CC App Uninstaller Tool, which is mentioned in the "CC App Errors" section of the Troubleshoot Section.
The guides cover all these steps in more detail, so you might want to go over them again if you haven’t already.