There is a strange thing that occurs when I’m working in the admin side of my website. I’m concerned about it because I did have problems moving the site and updating from 2.3.1 to 2.5.2.
Right now everything appears to be running the same on the new server as the old with one exception: on the old server, when login or save something, I see a blank white screen for a moment before I’m brought back to the relevant page in admin. That seems normal. On the new server, when performing the same actions, I’ll see a white screen with a “0” in the upper left corner. There doesn’t appear to be any problems yet, but I wonder if it is a sign that there could be problems?