Everytime I refresh the BM38 server or I change a rule configuration I get
two message.

An NDS API (NWDSRead-ReadAcl) returned error (-741).

Unable to build rules from (not set: no license) NDS object (error = -741)

All license are install properly (for what I know), and I don't see any
thing else that would be wrong.

Configured with NW 6.0 sp5 BM38 sp2a... all the update possible are