“This webpage was reloaded because a problem occurred” — no longer an issue
 

Safari on iPhone … trying to edit this post; the edit window opens for half a second or so, then the screen goes blank and the above message appears

I can edit other posts I made (on the same page, elsewhere in the thread, and in other forums), so I’m guessing something in the code for that single post got corrupted

UPDATE
edit function worked properly ~2 hrs later