Hi, thanks for the reply.
I probably explained myself badly. All our websites use the latest version 5.3.8.
The problem with uploading images from PageBuilder, where drag & drop does not work, has been going on since before, we are sure at least since 5.3.6.
If necessary, I can show a video where the dragging of files is highlighted, when they are dropped in the upload box, the window remains fixed and nothing happens.
We have to close the window, reopen it and use the upload function via browse.