Trouble transferring trips from Base Camp to Garmin Drive Assist 50 LMT

My Garmin Drive Assist 50 LMT does not want to save my full trip created with Base Camp when i transfer it from Base Camp to the Garmin device. It was working all the time before. Even if i delete previously loaded trips ( which was working before ) on my Garmin device and trying to load it back from Base Camp, the Garmin device has a message that it cannot save a part of a trip to my Garmin device. Could this be a software issue after an upgrade? V 5.90 is currently installed. I did not check this function straight after the last software upgrade. Even if i create a short trip with about 4 stop overs it will not save all 4 stop overs. Any advice.