hdmi to lightning adapter won't work with Crave or Netflix

Adapter was working until last week. Crave and Netflix are blaming Apple but at the same time say that they do not support the adapter to prevent misuse of their platforms. They are telling me to buy a Chromecast or Roku or Fire Stik. But, these units need internet service. We often download before going to a remote location without internet or cell service. Is this an apple issue with the adapter?