Contour app thumbnails not loading on wifi, iPhone & iPad

This just started today, thumbnails will not load on the Contour2  app on both my iPhone and iPad while I’m on my home wifi. When I use the cellular data from my phone, including having my iPad use the phone as a hotspot, the thumbnails load on the Contour app.  All other streaming apps (ie Netflix and Amazon Prime) work correctly.  I can stream video with the Contour app, it’s just the thumbnails that won’t load.  I’ve closed the app and re-opened it, even restarted the devices.  It’s not loading correctly on home wifi.  Anyone else having this issue?