Dialogs working fine on desktop but flashing and disappears on mobile.

Dialogs working fine on desktop but flashing and disappears on mobile.

Hello,
Could someone tell me why dialogs don't wait for action on mobile?
All are working fine on desktop, but when I test on mobile I remarks stranger behaviours.
when I click on link to show the dialog:
The dialog appear for some ms an disappear.
if I click a second time, sometime the dialog work fine or not ???


Thanks for advices