I setup the score correctly. (I think) SD, Tenor, BD lines sound great. Suddenly, after including a cymbal part, the SD sound is off. On the C space it comes out as a click sound. If I lower it to the B line, the sound is correct. The tenor and BD have no problems.
See attachment: So, measure 16 - snare sound correct. 17-19 is correct. Suddenly, m.20 is off, unless I lower it to B line.