stuttering delay compensation

[kava]

I encounter a strange new bug in 2019.10.

the delay compensation of multiple tracks, when in play seems to start working only after a few seconds.

in my post situation I have multipe mics - completely phase aligned on seperate tracks - but when I hit play I hear a delay between them (no phasing, it's a real delay about 10-20ms at least) after a few seconds the tracks allign and the delay is gone. theres no delay If I start with a little preroll.

tried buffer sizes etc. checked the session, nothing helps, no problems with earlier PT versions.

This makes it impossible to me to track my stems. the first few seconds of the dialogue stems are alway shattering and echoing.

greets
kava