Why does my mask not also get faster when I change the velocity of my clip?

[florianreichelt]

So here is the problem - i want to do a mask for a slick walk by transition.
No matter if I do a mask before I change velocity of the clip or if I do a mask after I changed the velocity of the clip. The mask does not adapt to the velocity. Which means the mask is always delayed. Why is that? Please help me!

[GermanTV]

Ich denke das ist nicht möglich. Versuche mal die höchste Qulitätsstufe für die Wiedergabe im Previewindow oder rendere den Clip mal testweise raus.

[Richard M Knight]

Do the speed change, nest the clip then do the mask

[KaRi]

When you change the speed with the curves, premiere doesn't represent the speed change on the other adjustments like mask. You could use the speed change of the whole clip or just nest the masked clip and than change the speed.