Since Confluence version 7.17, inserting images via the clipboard no longer works correctly. The image does not get a timestamp in the file name. This leads to the fact that a second inserted image gets the same file name (always grafik.png) and overwrites the first image. There is also no error message that the filename already exists.
Before version 7.17 images always got a filename in the form imageYYY-MM-DD_HH-MM-SS.png.
Possibly it is a problem of the translation. We use german