Optical to Dialogue still an issue?

[streamy]

Unfortunately, the crackling issue when playing music through the optical input of the Dialog still remains with the latest firmware (1.13.1.17). Also, the maximum sampling rate that works from my Raspberry PI with Digi+ optical output board is 24/96k. On the optical input of the Phantoms 24/192k works without problems and without any crackling using the same RPi/Digi+. I'm quite sure that at some time in the past or maybe with the first gen Dialog I could stream 24/192k to the optical input of the Dialog. However, the crackling was always there. It happens every 5-10 minutes, so is bearable but not perfect. Can anyone also confirm the limitation to 96k that I have and whether it is the same independent of the Dialog version, i.e. the Airplay and the non-airplay Dialog?