I have the same problem, but can’t fix it with the suggestions shown in this thread. The sidebar displays properly on homepage, but not in post. I only have this problem in Internet Explorer not in safari or chrome.
I have set content columns at 3, layout at “content sidebar”
Have tried everything above but no succes, have also tried to remove al widgets and replace just one in sidebar top, still doesn’t work.
Strange thing is, when I change to theme to another one with content/sidebar, I have the same problem!
site is:
https://www.buildmybody.nl
