Pusher is not working [update: it's actually working]

Hi I saw the youtube reel of pusher using. Amazing!
https://www.youtube.com/watch?v=R3rIC5ampHw

However it doesn't work quite like that with my machine. I can somehow push the ink a bit, but very little and not flowing. No matter how hard I push it.
Thx

That part of the paper has to be wet for the ink to be pushed fluidly. You can add moisture to the stroked area by pressing the water drop+ icon under Paper Operation>Moisture/Tilt. The dryer the paper is, the less fluid the ink movement is.

I just realized there's a bug with "wet whole paper" option. I'll try to fix it in the next release.

Hi Thanks very much for your reply!!
I also found that you should press the pen tip down and hold a bit longer to get more water pushing.