muting of virtual instruments

Muting of virtual instruments isn’t working for me. The sound doesn’t mute.

Is there some setting that I’m missing?

How are you (not) muting it? track list?, MixConsole?, event?, part?, midi track? is it a track instrument or rack instrument?

My apologies for not being more clear.

It’s a track instrument. I can mute the MIDI track that send to the virtual instrument or i can mute the actual virtual instrument track and neither one will mute the sound.

What instrument are we talking about…does swapping it to another instrument make any difference or have you seen this on other tracks??