I think I have this issue as well. How do i determine? I have the "Regular automatic update" checked in the scheduler. ESET will check for update every 60 minutes. I went to the update tab and checked for the last check for updates. It showed 9:41:26 pm. 5 minutes just before the next check for update, which shall be executed at 10:41:26 pm, I purposely opened a power point presentation slide and pressed F5 to enable fullscreen mode, i waited until 10:45 pm and exit the fullscreen mode of the power point presentation. I went to check the last check for updates, it showed the update was checked at 10:41:26 pm instead of 10:45 pm.
My current EIS version is 11.0.149.