Created attachment 10139 [details] possible patch Rebootgrid updates are not stopped reliable Starting a new exam opens a grid to reboot the computers in the room. That grid is automatically updated. These updates are not always stopped on closing the frontend exam module. This update call also acquires the room if needed. Meaning it is not possible to take that room from that teacher until the browsertab is closed.
Looks good to me RebootGrid is updated Updates stop on close No JS errors
Errata updates for UCS@school 5.2 v3 have been released. https://docs.software-univention.de/ucsschool-changelog/5.2v3/en/changelog.html https://docs.software-univention.de/ucsschool-changelog/5.2v3/de/changelog.html If this error occurs again, please clone this bug.