EDIT: @Brando Did some more testing. Same thing happens. The change is now saved as long as I stay on the page, but when I navigate away from the page and back again it has changed back to what it was before. I’m not able to publish from Editor mode.
I can now change the link and it is saved. But I can not publish the change in editor mode, is this because the editor mode in my designer license is “simulated”?
I can check with the client if it works on his side.