Anyone ever had this happen before?

I forwarded an itin as usual; the simplest of itins, a domestic DL round trip.

Went to WM to check on it and found it had:

1) Resurrected an old trip from Dec.
2) Extended the date of that trip to the middle of Feb.
3) Rolled into it all future outbound flights
4) Deleted all future inbounds as if they never existed
5) Deleted all hotels

Trips after the middle of Feb were unaffected.

What a PITA. I had to completely delete the past trip, including all the info contained within and then re-forward all my trips and edit them to my liking.