Pfeiltasten links-rechts

Hello,
A user has pointed out to me that the left and right arrow keys are no longer displayed in the slideshow ck. This only applies to smartphones and tablets (I only have Android available, I can't judge others). The display works on the PC.
Please help

Hi
Give the url of your page so that I can check
also check in your options >> navigation >> are they on "mouseover" ? this way, they would not show on mobile because there is no mouseover interaction
CEd

Options >> The navigation in the options were set to “Mouseover”, after setting to “always” the display is OK, thank you very much!
Kind regards