It has happened already more than a few times, that when I import brushes, the settings were different from those of the related video tutorials. I started to suspect there was a problem and experimented a bit.
Specifically, I tried to "correct" these brushes and put them as they should be, some controls work, others work ONLY for the first stroke I do, after which the brush resets all the changes I make. For example in a brush with pen pressure controls on both opacity and flow, I just turned off the pressure. I made a mark as seen in the video, and at the end of the stroke the brush has reset itself as it was originally.
I tried to save it BEFORE making the mark, but the exact same thing happened in the new brush. Is there anyone who has been in the same situation, and knows how to get around or fix this? NOTE: I know that in previous versions of photoshop this happened because of the airbrush mode, but as you can see from the video, it is disabled.