I am on Windows 11 using the latest weekly build. Usually I can open a downloaded image by clicking on it in the download folder and it will be added to the library and open in DT, but now I have to add the image to the library before I can get it to open. I am not sure if this is a bug in 4.9 or if my computer has the issue.
EDIT: a restart of the computer seemed to resolve the problem.