Unity Learn AR Mobile Pathway - Interactive Face Filter - Script does not work, please help!

Hi, I am a big fan of Unity Learn Pathways, completed the beginner pathway and really enjoying the AR mobile development pathway. I am currently attempting to complete the Interactive face filter module. " Create a visual script to detect a button press" I have tried for hours but I cannot get my mobile device to register a tap on the UI Canvas. has anyone experienced anything similar?

What screenshots or videos can I share that may be relevant for help?

Really appreciate any help with this :slight_smile: