OK, I've been emailing with cox.help and testing various item. TNT/18, Freedom/19, Paramount/52 and WGN/68. On different sites, depending if there is a 2nd language available, I had luck getting both sound and motion. At the screen bottom right there is a Language Setting icon that has 3 buttons that can be slid on/off. the 2nd is Secondary Audio (SAP). Try turning on and off. Depending if there is a Spanish broadcast or only English, this was enough for me to get sound and motion. It does not always work, depending on the actual broadcast. If the station is stuck, try the SAP on.
Also, if the Secondary is not there, try turning on the Video Description. Worth a try till Cox makes a permanent fix.
Looks like I fixed my problem myself. I tried Cox help but was told to reset the cache and all sorts of stuff I had already done. It seems, for some reason, that Video Description was off. When I clicked it on, then sound! I just looked at it again and was going to take a screen shot to show and then it was off again. No sound. I clicked it on and then sound again. In the right lower hand corner there is a text bubble that is for Language Settings. This has something called Video Description.
