Recently I'd been noticing it was taking a very long time to post photos and I was still experiencing the previously reported issue of the screen getting hung up then getting the "Duplicate Post" msg. When that happened I'd have to close that tab and open up CH in a new tab.
Today I can't add photos to my post. The screen just hangs up (spinning wheel thing just keeps spinning).
I've been trying to add multiple photos so I'll try to add just one here to see if that makes a difference.
I'm using a macbook with Safari.