Hi @Joe Hudson ,
Does Teams Metting add-in disappear in the ribbon? What is the Outlook version you currently use? If you can, please provide a screenshot for us to better analyze your problem.
In this case, here are some possible solutions that you can try:
- You can use the Microsoft Support and Recovery Assistant to perform automated troubleshooting steps and fixes. Download the Assistant.
- Check if the Teams Meeting add-in is enabled or disabled in Outlook. If it is disabled, you can enable it by following these steps: In Outlook, go to> File > Options > Add-ins. Confirm that Microsoft Teams Meeting Add-in for Microsoft Office is listed in the Active Application Add-ins list.
- You can also try to re-register Microsoft.Teams.AddinLoader.dll by running a command-line instruction. This may help to restore the functionality of the Teams Meeting add-in. You can find the detailed steps for this method here: Resolve issues with Teams Meeting add-in for Outlook
I hope these solutions will help you.
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