Very rarely when standing up multiple lab workstations for my regular training classes, one of the lab gateways will do this even though the exact same license is successfully applied on all of them via the same technique, and they are all cut from the same base workstation image. It never happens often enough to take the effort to reproduce it, and a reboot of the gateway always fixes it.
Attend my online "Be your Own TAC: Part Deux" CheckMates event
March 27th with sessions for both the EMEA and Americas time zones