Do you have Glonass Ambiguity Resolution set to ON or OFF?
Were the 6 green satellites all GPS? Only the GPS satellites can produce a fix and Glonass is considered in some way.
I’m not sure what the minimum criteria is here. I would assume either 6 GPS or 6 Glonass would be required to produce a fix. Not sure if 3 GPS + 3 Glonass = 6 is good enough to get a fix. Maybe someone can clarify this for us.