Borderless Ipad Issue

I am using the borderless option for my gallery, and all works well on desktop and mobile devices.

However, on an iPad, the left and right arrows have been replaced with boxes with a cross through them.

I am tempted to just hide them using css, but that would leave the gallery without obvious navigation (admittedly swiping would still work).

Any ideas?

Thanks in advance!

https://wordpress.org/plugins/wp-bootstrap-gallery/