Indesign publishing online navigation problem

[Smalltalk]

Hi all

I have been using InDesign for years for my printed magazines but have just started experimenting with interactive online versions. My magazine works great on desktop but on touchscreen devices I am unable to see the navigation arrows after a few seconds and am unable to navigate around the magazine.

Here is an example: https://staging2.smalltalkmag.co.uk/in-print/online-magazines/

Thanks all