Is anybody else having this problem where when you try and make changes to an existing element (in any campaign) it won’t take? Then there’s a Yellow ribbon message at the top that says:
“You have opened this campaign up in another tab or window…”
Here’s a .60 second screencast video of the issue:
(https://m4vids.screencasthost.com/watch/cYVhcwvtFa)
Hi, @M4_Research,
Long time no see 
So as cliche as it is to say, this behavior is often just old cache on your computer. I’d first try to clear your internet cache and see if that doesn’t help. We’ve seen it multiple times and I’d say 8 out of 10 times, it’s just that.
If I ever get something like that my first instinct is always try and incognito / private window to ignore old cookies.
What @Andy_Wroe mentions is true too but usually because a browser plugin can also interfer (like grammarly is one of the known ones … just for example).