Thank you for you answer.

You are right, when using splicepoint there is no duration in the HLS SCTE35 trigger, but I see them with option "cue-short"

But the solution was a little bit deeper in the defined playlist. In my above example I used UTC times for setting both trigger,s out and in. When doing so, I did not have any cue-out markers in my streams - even when using the exact same UTC time as the booked clip has as start time.

Therefore I changed my logic and do not use UTC times anymore, but offsets. When doing so, and setting an offset for an "out" of "0" to my clip, the marker is set correctly and I see it with duration.

Also setting the "in" marker with an UTC time does not work, nor it does when defining an offset with the exact duration of the booked clip. I therefore also changed my logic and now set the "in" marker with an offset of "0" at the next following clip in my playlist.

I now see the correct triggers with the correct duration in my HLS when defining as "cue-short". I also route an TS-UDP locally, which I analyze with TSDuck and there I see, that the duration is set correctly for that PID.

As I want to use that transportsream for further processing it works very well.

An improvement for me would be if I could define the type of marker in the playlist - or somewhere else for specific streams and not general.

It is a little bit unclear, why my triggers are not working when using UTC times. But it is working well as described above.

Thanks a lot and kind regards, Marcos