Dear Gary,
I did a test and it seems that the feature works smoothly at our side.
I'd like you to check whether the issue happens in the Teams desktop client or Teams Web App.
If you are using Teams Web App, to confirm whether it is a temporary issue in your environment, I suggest you clear the browser cache, close the browser and then sign into Teams Web App with your account to see whether the issue disappears in your environment.
If you are using the Teams desktop client, I suggest you follow the steps in Clear Teams cache - Microsoft Teams | Microsoft Learn to clear the application cache and then do a test to see and let us know the outcome.
If the issue persists after trying the suggestions, it should be an issue in the tool in your tenant.
As it is an independent module in Teams and we have a specific support channel helping you on the related issues and questions, I suggest you post a new thread on Office 365 Training - Microsoft Q&A for further help.
Introduction - Training | Microsoft Learn
Your understanding is greatly appreciated!
Sincerely
Cliff | Microsoft Community Moderator