Update library problem “Skipping item with .nomedia file”

Hello. I have osmc (kodi 16.1) on raspberry pi3. Works fine except for video library updating.
I use network source with protocol webdavs. I don’t use external sql. Video files are in separate folders. Folders names are as on imdb.com and often when updating – update is not correctly going on and I have
logs:
WARNING: Skipping item ‘davs://USERNAME:PASSWORD@webdav.<domainname>:443/movies/’ with ‘.nomedia’ file in parent directory, it won’t be added to the library.
WARNING: Skipping item ‘davs://USERNAME:PASSWORD@webdav.<domainname>:443/movies/Who%20Framed%20Roger%20Rabbit%20(1988)/’ with ‘.nomedia’ file in parent directory, it won’t be added to the library.

Network cloud server doesn’t have ‘.nomedia’ files in that folders.

I tried:
advancedsettings.xml
<advancedsettings>
<video>
<excludefromscan>
<regexp>[!-._ \\/].nomedia[-._ \\/]</regexp>
</excludefromscan>
</video>
<videolibrary>
<usefasthash>false</usefasthash>
</videolibrary>
</advancedsettings>
but without success. All the same.

If I update exact folder – it is updated with success.

So I have questions:
1. Does anybody know what wrong is with my updating process? Is there workaround ?
2. Is there better network protocol for network streaming of kodi then webdav like ftp or scp for ex. ?