Hello Alan,
Thanks for reaching out. Good work on the fixes so far. The issue you’re facing usually occurs because the repair process re-registered the old Office 2019 license instead of deleting it. Now, both licenses are visible in the account panel. Although this doesn't impact how it works, it might create issues later, particularly if updates check out the wrong license.
The simplest method to get rid of the old activation is by using the Office Software Protection Platform (OSPP) tool included with Office. Run ospp.vbs /dstatus from the Command Prompt to view all keys, then use ospp.vbs /unpkey:<last 5="" characters=""> to uninstall the 201</last>9 key. Restart after that and confirm only the 2024 LTSC key is there. Before all this, could you see if both licenses say “Activated” or if one says “Unlicensed”? This will show which key needs to be removed.