miniDLNA not refreshing

Is there any viable solution for this bug? I have similar problem, although not exactly the same - in my case, Turris is not refreshing and showing only large files (over few GB, did not tinkered with determining exact size). And the restart of Turris helps (when reindexing is executed automatically). But this is not sufficient, since I want to use it without any complications, and waiting 30 mins until all my library is refreshed to see newly added movie which I want to watch with my wife is definitely a complication for me…

Basic infos → model: Turris Omnia, FW version: OpenWrt omnia 15.05 r47055, Core: 4.4.196, minidlna: 1.2.1.

Extended infos → minidlna is running over HDD with ext4, mounting configured through LuCi. Minidlna configured also through LuCi, and there is noting special:

Any ideas?