Users Laptops loose trust with domain?

Users Laptops loose trust with domain after they have been WFH then come into the Office and connect. We have been running Forticlient for well over a year and never experienced this issue until we updated to version 6.0.8 n& now with v7.01 Since then random users laptops will loose their trust with the Domain if they have been WFH then come back to the office, they can be 1 day from home or several weeks but it still happens.   Only way to resolve it is to reset the laptops account and re-join it to the domain. :(  Anyone else had this?