Audio track VU meter not moving
 

Hi. First, I hope my "issue" is not a noob question. I apologize in advance if it's the case.

I'm using VI (Kontakt Player and Geist2 on their latest versions) on Instrument tracks and sending multiple outputs to play with the individual sounds coming from the VI.
My issue is that the meters of the individual audio tracks receiving inputs from the plug-ins aren't moving at all when moving faders. I'm clearly hearing the volume moving up and down when playing with the faders though.
I do not have the issue on Aux tracks. But when I feed an audio track with the outputs of the Aux track receiving the inputs of the plug-ins, I still have the issue on the audio track!
No issue on a "regular" audio track with audio clips on it.

I know it is not related to the pre-fader option but I suppose there is something else to know that I don't know!

Many thanks and stay safe!

- Pro Tools 12.8.3 - Windows 10 - Komplete Audio 10