Hello all,
New NextCloud installation, Ubuntu Server 17.10, I got it to work just fine right out of the box (the only "major" change being the data folder). I downloaded the client (also under Ubuntu) configured a few folders, and as far as I can tell, they're all getting backed up successfully, with the exception of the default blacklist list of files/extensions. All is well except for one problem. I have a folder with a few video files in various formats (avi, flv, mpeg, mp4, etc) and they all get copied over EXCEPT for the mp4 files. It's not a size issue, I have larger files getting copied over just fine. The files not being copied are anywhere between 30-500 mb.

The client reports an error (sorry, not at home right now, can't copy paste) along the lines of the "server replied: Forbidden (Sabre\DAV\Exception\Forbidden)"

Any idea where I might look for the cause?

@dbeato no, I don't think so. It's not happening after a "move to a different server". Files were not moved manually, they were done by the client. I reindexed (occ) in case it helped, but no difference.

@black3dynamite Not windows, Ubuntu 17.10.