Import fails on a video: only import 1:12 for a 6 minute video

When importing a Finnish video Opetuksia 1700-luvun satukirjasta - YouTube
the importer only imported 1.12 minutes, skipping the rest. There are 6 minutes in there. I have not had this issue before: is this a known issue? Is there something special about this video?

Did you noticed the issue with that one specific video only, or did it happen with some other videos too?

I have not had this before or after. Only this video.

Seems like something specific to that video. We will try to figure out what is the problem. If you encounter the same issue with any other video, let me know.