Lovelace Banner Card Fork on Mobile and Media Player issues

Hi, I’ve recently downloaded the Lovelace Banner Card Fork and I have the following issues:

  1. On the Companion App on my iPhone, all the controls/buttons have disappeared. This does not happen in a browser on my laptop, everything works as expected in Chome. The issue resembles the original issue with bannner-card that the fork fixed, but only occurs on a mobile.

  2. the play/pause, forward and rewind button on a media player included in the banner card are transparent and only part visible when I mouse over, invisible otherwise. This only present in a browser, they disappear completely on mobile, as above.

I have tried changing themes and applying online CSS to the button CSS id/class but no joy.

Any suggestions?