Since the camera is triggering that it looks like it could be SD card write speed related. You could try a slower setting like 3 seconds/image. Also, benchmark you SD card to make sure it can keep up.
If you are using terrain awareness we have to set the triggering method for each segment which can cause gaps at terrain inflection points while the triggering is reset. This is just how the DJI camera works.
I can confirm that the distance triggering is working as it should for other users.