I looked online on how to create a gated snare in LMMS and found this one. The decay/gate knobs had the same issue for me too so I looked that up. Apparently, it's a ~~bug~~ feature. Take a look at this OP https://github.com/LMMS/lmms/issues/5352
I tried to use calf gate ladspa but that didn't work.
I tried to use calf gate ladspa but that didn't work.