Hi. I am just getting started with MEC plugin and have noticed the same type of issue on my site - where, for some reason, after (re)setting widgets in their proper sidebars, they seem to "migrate to" the MEC single sidebar and/or the Main Sidebar. Not sure why this is happening? Seems like I first noticed it about a month ago now and need to get this behavior figured out. If this is a configuration issue, do you have a kb regarding proper setup?
I too upgrade MEC to 2.5.0 but I have noticed this movement of widgets to MEC/Main sidebars before and would now like to figure out how I might correct this behavior? In checking the MEC settings, I noticed that MEC activation is "unverified" but assume that is standard when using plugin thought Pro?
Thanks in advance!