Audiomarkers are not visualized as red lines in timeline if created by using the assistant

If audiomarkers are created by using the assistant, they are (at least very often) not visualized as red lines in the timeline. Only if they are added, just by clicking on “Add”, they are marked as red lines.
This makes it difficult, to shift or remove a specific audiomarker which is aligned with a specific photo.
Additionally, it would be very helpful to have an option to add / replicate audiomarkers automatically according to the time interval of some initial audiomarkers which have been set by hand.