This behavior is expected with the avf engine. You must use the 'seeknotify' message in this context. From the jit.movie reference:

"The avf backed jit.movie is asynchronous when seeking (e.g. setting the time attribute or using the frame or jump messages). This means that the frame output immediately following a seek request is not guaranteed to be correct. Users requiring exact frame timing must use the seeknotify message output from the object's dump outlet to trigger frame output."

So, you would need to do something like this:

Thanks a lot Ben. It works. Does it mean we will have to use this method from now on ?

Best regards Roland

Hi Roland,

I don't see that this could change, just due to the nature of AVF. @engine qt should still work as previously expected.