HEAT + Dynamic Plug in Processing in 12.6

[T-Low]

i´m sorry to sound like a broken record

but there is a bug in HEAT + Dynamic Plug in Processing

i´ve tested on 12.4, 12.5 and 12.6
with Yosemite and Sierra :

Create a 96 track session at 96k / 24 bit , 64 Samples buffer
no audio files needed

Activate HEAT in POST setting
Add f.x. Avid Channel Strip , or any other plug in , to all channels

Hit Play + Stop , the CPU load stays the same ... minutes later
it never drops like it should

Deactivate all the Avid channel strips and the CPU load goes down !!!

any suggestions ?
thanks