I recently purchased a Yamaha ysp 5600. After waiting a couple months on the waiting list. it finally arrived! generally i have found that it is sometimes awesome at surround movies. whilst mostly average on music. having used it for just less than a month i have noticed a few bugs in the day to day use 1. audio assign doesnt work for me. i have optical out for audio and hdmi for video. cant get audio and video on any of the hdmi inputs 2. spotify connect often drops out. spotify on mac simply deselects the yamaha from the list of spotify connect list, or yamaha dissapears from list complately. 3. yamaha wil often just turn itself off while audio is playing. i opened this thread to see if other owners have had the same issues or even others. i noticed there is very little online feedback,so i thought a owners thread would be useful. ps im on latest firmware vs 1.22 and i am told yamaha know about the optical issues. but i encourage other owners seeing the issue tp complain also.. get them to release a fix.