MediaBrowser jump in time

Good evening, have the following confusing problem in MediaBrowser:
Serviio 1.9 @ QNAP
I can`t jump in time in any video file. Player just going back to the initial position.
Tried many kinds of videos, with and without transcoding
Tested also with audio files - there are no problems with audio files

This case is only using mediabrowser, when watching using DLNA - no problems
Hope to hear any solution

Would like to add that tested with all possible windows browsers and IOS
On mobile it`s working great on ServiiGO with VLC player

Any ideas?

Tried on different PCs, with switching different video quality.
Still the same.
I just don`t see the point of using PRO version, if I can`t watch movie from the point I stopped.

Can anyone confirm that you have or don`t have same issue?

[zip]

It should work if you use Original quality on a mp4 file. If the file needs to be transcoded, it's not supported yet. There is a ticket to do so: https://bitbucket.org/xnejp03/serviio/issues/1012