Just two of your licenses are active now.
Did you follow this workflow: https://support.capturingreality.com/hc/en-us/articles/4410037072146-I-have-several-ENT-licenses-How-can-I-easily-share-them-with-my-team-students-for-offline-activation- ?
It seems like your students have activated just PPI license, not the full one.