Kefir problem?

[Curse9]

Hello guys,

i have a strange problem everytime when i record a guitartrack.
i start with insert the kefir vst and click direct monitorin in my nuendo. putting an impulse into it and start playing. after some seconds the tone fades out and the wave gets very thin. after that it goes back to its original size. its like reducing volume on the input and turn back. anyone any idea how to solve this problem?

thx very much!!!

 

[James-Doolan]

Do you have some automation on by mistake??

 

[Curse9]

nope. no automation anywhere..