Created a new page
QQ TEST page because getting error messages any time add a smiley to regular page. If no smiley on page and save page. no problem saves.
If use editor smiley icon, then select any icon like a smiley face, or clock or pumpkin and insert anywhere in the only sentence on the page, get error message:
“Failed to save the page. Reason: Server not responding”
yet if delete smiley, clock or pumpkin from the page/sentence then save the page and the page saves no problem.
running 12.6.1 standard install