Ok, today I had the same experience @Altiplano.
After watching a vid with the blue button, saw that message about daily limits.
Also noticed that the format it's different now - there is a small icon with a camera which becomes grey later.
Today I watched about 26-27 vids for greens
+ 2 vids for the X2 bonus
+ 6-7 vids for reds
+ 4-5 vids with the blue button
so I won't complain