I just figured that media tab (codec, resolution etc.) is not imported as used to be. All fields are empty regarding the media info. And when I look at the last normal import, it is before the day I got the new registery key from you and re-authenticated XMM again.
Since that date, XMM had not imported the codec and media info. May be that also might be the problem with the "Frame Extractor".
When I Re-Read the codecs within the edit window, the info is captured and saved, but XMM doesn't read them automatically at the initial import process.