Drag and Drop failure

1,2. No project allows drag and drop imporation. I open the projects normall and when i try to drop the files inside a folder the pointer turns to “block” sign.
2. Veryfing? do you mean to download a new version? the current built is set over a year now.
3. It happens even in 4.11 version.

I tried to import the fbx using the file system and are imported properly. Although the drag and drop method is a usefull feature due to the large number of imported files my project requires.

Thank you!