LE8 on RPi3 - error playing videos -> Bug?

Hello forum,

I have huge problems with playing certain files (mp4, flv, mkv, etc), that I have on my drive for some time now.
Must say in advance, I migrated from RPi2 to the RPi3 and from OE7 to LE8.

I was using OE5 on the RPi2 for a looong time, and all the files in question played very well.
I then migrated to OE7, but did not play the old files since then. Then another migration to the RPi3.
Now on the RPi3 I wanted to play some of these old files again and discovered, they where not working anymore. Kodi just showed "Some files did not play blah blah". I thought, well, OE7 seems quite dead, lets go to LE8!

But, alas, same problem.
I enabled logging and took a look at it and what I found was quite interesting.
In the same folder where I have some of these old files, there was a leftover RAR file File80.part04.rar, from some time ago.
It seems when trying to play some videos, Kodi wants to open the part rar file (for what reason I do not know) and when this failes, the video player dies.
Seems to be some kind of bug hitting OE as well as LE.

Logfiles are here:
kodi - Pastebin.com

Any ideas on why this might happen?

edit: When I delete/move the rar file(s) the problem is gone and the files play!

Quote from Iridium

LE can play media from archives ISO/RAR/Zip etc, and this is what is trying to do - without success!.

[From Kodi Wiki] On the Pi this is now optional (enabled by default), enable or disable with: Settings -> Appearance -> File lists -> Support browsing into archives.

Possible you had set this on your RPi2 and didn't on the RPi3.

Funny thing is, I do not come near that archive file. I select my mp4 file to play and it still wants to open that rar archive.