On a Mac: when I place a Word-file with embedded graphics, they all appear in the links panel as embedded graphics. But they have a file extension with a comma. So image, jpg instead of image.jpg. The same goes for other extensions. When you need to unembed them in order to improve the image, the comma is preventing my computer from opening the file. When I change it to a dot, then I can open the image. But then InDesign has lost track of the image and I need to re-link it.
Iit doesn't occur when I change InDesign to English. This error has been there for a few years already, but since you've solved this in the English version I expect this to be just a small task for Adobe.