GroupWise Mobility Service 18
Newer Samsung devices can be prompted to download and apply recent system security patch from January 2020. After that, once you connect to your GMS account with the device, there are changes made on your Exchange account configuration settings which result into connections problems. What typically get changed is login name being swapped by email address and also Exchange server settings is modified. Sometimes this cannot be even changed.
Although this seems to be more a problem caused by the Samsung patch this problem is under investigation to see if we can provide any fix for this new problems.