Not yet, its the weekend and they arent open here. The issue is a simple software fault. If you stream from Spotify and push a track at the amp connect, the amp starts playing it. One second into the track, the spotify connect then changes the background picture (TV plugged in or not) to an image of the track (album artwork usually). The update process for that image causes the software to interrupt and this is the cause of the small track delay. its only a small delay but it drives me mad, and it shouldn't be there. A simple solution would be to not play the track until the artwork had been updated.
Pioneer shipped a faulty amp to me anyway, so it had to go back and the shop I got it from doesnt have a replacement to swap it with, so I'll push for the yamaha upgrade, push the bug to pioneer to see if they'll fix it but it all honesty, I don't expect to hear from pioneer at all after filing a report. I find it strange that they pushed code out that would do this.