It happened to me 3-4 times in last 3 weeks.
My default snapshot is channel 1 with Fluidsynth with jRhodes3.
Sometimes it happened that the sound of this snapshot is a drum set.
I guess it happens after updating butI am not sure.
zyncoder: oram (84612a6)
zynthian-ui: oram (389f1ca)
zynthian-sys: oram (7c9dfd3)
zynthian-data: oram (db0355a)
zynthian-webconf: oram (0b6a8ca)