Hi,
started cutetube2 from commandline:

$ /opt/cutetube2/bin/cutetube2 -v 5

and get this:

....
2017-02-06T19:29:07: YouTubeVideoModel::list(). Resource path: /search
QNetworkReplyImpl::_q_startOperation was called more than once
2017-02-06T19:30:13: YouTubeStreamModel::list(). ID: Twv6OfjKAvU
2017-02-06T19:30:22: YouTubeStreamModel:nRequestFinished(). Error: No video streams found for Twv6OfjKAvU
2017-02-06T19:30:44: YouTubeStreamModel::list(). ID: PFInOo2gleY
2017-02-06T19:30:52: YouTubeStreamModel:nRequestFinished(). Error: No video streams found for PFInOo2gleY
2017-02-06T19:36:44: Transfers::save(). 0 transfers saved
~ $ id
uid=29999(user) gid=29999(users)
.....

Hm, seems, session with temporary id doesn't work ... :-/
any hints, why?