The Mixed Reality toolbar doesn't show on Teams during a Dynamics 365 Remote Assist call
Symptoms
The Mixed Reality toolbar doesn't appear on the Microsoft Teams desktop application during a Microsoft Dynamics 365 Remote Assist call.
Cause 1: Microsoft Teams downloaded a new version of the client app in the background but is still running the older version of the app
Resolution
To solve this issue, restart your PC.
Cause 2: The Dynamics 365 Remote Assist HoloLens user has temporarily lost tracking
Resolution
The Dynamics 365 Remote Assist HoloLens user should review tips for restoring tracking.