It has happened a couple of times, including now, that my trophy count shows less amount of trophies than I actually have. I can see in the list of members of the alliance my real amount of trophies, but in the raids page show less though my position is correct. Right now I’m in position 57 with 2700+ trophies, but my count in the raids window shows 2600+
It happened both times that I got attacked while I was on a raid at the same time.
I hope this can be of help.