you are sending 'through' midi messages to the coyote (see the other post about reverb on the through channel)

what are you playing your solos on? keyboard? as you have set the midi through velocity to 127 its maxed out.

as you say it used to work which suggests something has changed - and that might not be in BIAB.

as videotrack says it might be the input device you are using.

i can't folllow the german settings in your video but can you access the coyote synth? my tts-1 has its own GUI and shows each instrument - with a volume control. i think again the through channel works differently to the GM instruments BIAB uses in the mixer