We have a few users who use iMacs and connect their company Exchange accounts for email and contacts. We have a new issue that has come up when they go to modify a contact or add additional data and upon saving the card, some data in the card is deleted upon saving. Sometimes it is what was just added and sometimes it is the new information along with phone numbers and/or addresses that are deleted as well.
I've tried to setup one of the users on a brand new iMac with up to date OS and have been able to replicate the issue still. This is a major show stopper as data loss is occurring and my users aren't able to manage contacts without risk of data loss.