We have another problem, which is different from the precedents.
In fact, we have 2 videos.

V1 (3.23Mo) and V2 (4.22Mo).
The video V1 “bug”, and the video V2 doesn’t bug.
The bug is :
When we just display the video V1 in Direct RT (eg. in the Time column we put 1200ms), it works.
But, when we ask to answer to a question during the display of the video V1 (eg. “Is the sphere moving slow or fast?”, we put in the time column rt:18,25), Direct Rt bug : the video V1 is not displayed, and a black screen comes. A second window of Direct appeared.
The other video V2 doesn’t bug like this.


The video V1 that bugs have this codec : Xvid MPEGP4 format
The video that doesn’t bug V2 has this codec : indeo 4
Are these codec the reason of the bug ?

Thanks.
Best regards

Aurelie Dommes