Can't add Images folder to HTML,CSS, JS

I am on a free acount.
I can’t seem to add a folder to the project.
Is there a limitation that prevents adding a folder to HTML,CSS, JS projects? A few years ago I could do it and when I open these old ones the folder is there.
However now when I select “Add folder” or try to drag one in, it shows the green ‘+’ but no folder appears. No error message either.

Can you send a screenshot?

You can add folders. You just have to press the folder creation button.

OP is having an issue with the folder creation button.