Hi @Kim, David,
Welcome to the Microsoft Q&A forum.
I would like to provide you with the following information:
The issue where My Templates is missing in Outlook has been acknowledged by Microsoft and is currently under investigation.
You can track the progress of this issue via Admin Center > Service Health using the Issue ID: EX1255397.
At this time, no action is required from you. Once the engineering team completes the investigation and implements a fix, Microsoft will provide the latest updates, and the issue will be resolved.
I hope this information is helpful.
If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you.
I look forward to continuing the conversation.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.