Maybe this is happening to you too? (as it doesn't seem to be a browser related issue).
I have found that this problem is related to "vevo" videos, as per other
channels don't show this message. I have convinced myself that the issue here
is with vevo, not invidio.us
- [Trisquel-users] Unable to play videos on invidio.us sevn
- Re: [Trisquel-users] Unable to play videos on invidio.... liberatrisquel
- Re: [Trisquel-users] Unable to play videos on invidio.... gnuser
- Re: [Trisquel-users] Unable to play videos on invidio.... magistereme
- Re: [Trisquel-users] Unable to play videos on invidio.... mason