Recently I have been having some issues with decent sampler - yes, weirder than the usual DS bugfest. See the video below. Every time I raise the filter cutoff - the knob in the middle - it quickly comes down again. No parameter automation going on in this session. Neither on this channel nor any other. Why would this happen?
decent-sampler.desktop should be updated to replace 'Multimedia' with 'Audio' to avoid ending up in the 'Other' section of your application launcher. The icon section also needs to be updated with a hyphen in the middle: 'decent-sampler'.