UPFRONT TABS SECTION AND SLIDER REVOLUTION

Dear Support Team,

I have created tab section on a website and inside of each tab I have added post sliders from Slider Revolution plugin. What I receive as a result is the following:
1) First tab always open the slide in full width and lenght
2) All other tabs show miniature slider
3) After browser resizing or after I while all sliders in all tabs loads in full size.
I have to add that the tabs dimension are larger than the sliders dimension and plus the sliders are responsive.
Here's the link: https://jocotours.com/account-2/
Could you check this issue and see whether this could be some upfront/tab section issue or should I see with Themepunch support team?

Many thanks,
Vladimir