DD+/Dolby Atmos problems with ROKU Ultra
Is anyone able to get Dolby Atmos and DD+ to work consistently on the Roku Ultra 4660? I have it setup as follows: Roku Ultra to Samsung HWK850 sound bar to HDMI 4 on Samsung KS8000. I have sound set to auto and have tried DD+/DTS and DD+. If I start everything up I can initially get dolby atmos or DD+ to work. Apps like VUDU I have no problems with. If I try to use Dolby Atmos from Jack Ryan on Amazon prime and I rewind or fast forward I lose all audio. If I use apps that output DD+ like HBO NOW or SHOWTIME I lose all audio if I rewind or fast forward. If I set the audio to output DD/DTS only I don't have an audio issues. But my soundbar is capable of handling DD, DD+, DD True HD, Dolby Atmos, and DTS 5.1. I'm just trying to figure out if I should give up on ROKU and switch to ATV or Shield. Thoughts?