Try open start and search for feedback and open the Feedback Hub app and report this issue.
Try run Windows Update and download and install all updates.
Try performing Clean Boot and see if the problem persists?
Have a look at:
Install Quick Assist Microsoft Store
I have tried in every way I know to download the new Quick Assist from the Microsoft Store but I'm getting no-where. Has anyone been successful in installing the new Quick Assist, if so, what did you do?
I've tried the usual fixed for the Microsoft Store;
- Rename C:\Windows\SoftwareDistribution
- Run Powershell as Admin and use WinGet
- Login as domain admin and try installing from the Microsoft Store
- Attempt to add the app in Endpoint Manager (store links appear to be broken at present)