CLI System Reboot Cant Get Lock?

I have a MAX Transit with firmware 8.1.0. When I ssh into it and try to do a system reboot I get

system reboot Try to get lock. Please wait…

Can’t get lock.

It will not perform the reboot unless I log into to gui. Does anyone know what what “Can’t get lock.” means and how to fix this to reboot through CLI?

Please find the screenshot below. I have no problem to reboot my MAX Transit with CLI.

Please ensure you are using latest firmware version. If you are using latest firmware version, please open ticket for us to check.