Profile icon changed

I installed 1.7 without any code modification. Installed a few plugins (izap_video, photo, profile manager etc.)

Craeted user admin and hayaze, after a few activities, when I login with admin, hayaze profile icon changed to admin profile icon. And when I login using hayaze, the admin icon also changed to hayaze's profile icon. I'll have to change the profile icon, crop and save it again to change it back. <----- I see admin icon and vice versa.

Also tried to disable plugins but no luck.


Is it a bug ? Any idea ?