-first of all, the triggers are 1-sample triggers, so these displays might miss them (not sure about which update rate they have), so, to test, connect a "c>0" module and a timed gate generator, this should turn it into gates. When using a latch module, you can sample&hold the velocity of the trigger.
-secondly, the patterns are 96 steps long (8*12 steps to enable thirds), not 16.
-thirdly, about the first 40 patterns don't contain many notes. For a first test, just check out pattern 48 for techno.
-fourthly, it seems channel number 0 ("kick") is rarely used by the midi files, the kicks are mostly triggered by channel number 1 (basskick).
also check out my test-folder, in there, I have two modules that can be used to read load/edit/save the channels and patterns. You can load the one with the 96 sliders 8 times to view/edit all channels together