Movies get wrong year since Kodi 17

I don’t know if this is a skin, kodi or scraper issue.

In Kodi 16, when i scraped my movies with themoviedb they were scraped correctly.
When i build up the library fresh in Kodi 17, the movies get recognized correctly, but in the library the year (first aired date in Estuary Skin) is in more than half of the movies 1969 instead the correct year.

this happens on different devices and in all recent builds of Kodi 17.

It does not happen in Kodi 16.

I supect it to be a skin problem… but do not have any proof…

Do others see the same problem occuring?

Screenshot: https://1drv.ms/i/s!AmXLdQf5bdlFq-VmrcwXH1nPSG8eOw