LG TV, Xfinity Stream, Weather Channel Issue

Is anyone else having this problem with the Weather Channel on Xfinty Stream, on an LG TV? Everything working as expected EXCEPT ... recently (June 2 or 3) on both our LG TV's the Weather Channel HD (270 and 1102 in our area) will not start up; it times out with the message "This Video Can Not Be Played, TVAPP-00100". Weather Channel HD works fine on Xfinity Stream on iPhone, so the problem is LG TV. I've discovered that the non-HD Weather Channel works (39 in our area.) But due to a default setting, if you launch the non-HD station, Xfinity Stream immediately and automatically switches to HD and the launch fails. Here's a solution: After exiting from any current channel playing, go to Xfinity Stream settings on the opening screen, far right of the line that begins with "Live TV". (Note -- not LG settings in the upper right corner.) Go down to Playback Preferences. Select Play Best Available (which probably says "On"); go down to "Off" and select it. Exit (twice) from settings. This will allow you to launch non-HD channels (from "Live TV" -- the Guide) without the autoswitch to HD. Note that the autoswitch feature is the default because it's, I guess, a desirable feature?