Have to log out to add photos to a post

I’ve added over ten new posts today. Each time I make the post, copy/paste in text from the old website, then try to click the link to add a photo from my computer’s desktop. Every single time this link does NOT work. The only solution is to log out, and then back in, and then suddenly that link works.

Surely this is a known issue?

That doesn’t sound right, but I don’t think I understand what you’re doing.

What does this mean?

try to click the link to add a photo from my computer’s desktop

This link:

Well that’s odd! Can you open the console in dev tools (press F12) and see if there are any error messages?

If you have ad or popup blockers, perhaps turn them off temporarily to see if the problem goes away?