A second try to post...
When accessing Frndly, FoxNation & Paramount+ the applications opens and displays the text associated with each show but many times most of the preview thumbnails are missing just, empty gray boxes. This does not happen on YouTubeTV, YouTube, Stirr, Pluto, & Tubi but on PLEX they are very slow to open and on the Roku Channel the first few are shown and empty boxes where the preview pictures would be below that. This it true on three different Roku's and TV's. A strange twist is this is not an issue on Xfinity cable (50MB/s down and 5 MB/s Up) but only occurs on Century Link Fiber (200MB/s down & up) .