My jump button isn’t working! – Fun Run 2 - Multiplayer Race Review

I’ve had this game for a while. I play it on both my IPad and iPhone 6.. I recently bought an iPhone 8 Plus and now my jump button is barely working!! Is anyone else having this problem or is it just my phone??? I can jump fine on my iPad still. Other than this, I love this game. Please help me fix this!!!!
Review by Jsrobin992 on Fun Run 2 - Multiplayer Race.