Tell us what you are trying to do?
Create a custom slider of Posts using a View block
Is there any documentation that you are following?
This video of yours: hidden link
Is there a similar example that we can see?
Probably what's in that video
What is the link to your site? hidden link
The top headline ('Inclusive Recruitment') and the image to its right are dynamically pulled from a post, but there are several posts so I expected this to fade in/out. Here's a screengrab of my View's Pagination settings: hidden link
If you're able to temporarily switch the theme to one of the wordpress default ones then and see if the issue remains.
Additionally does your theme include bootstrap ? If it does then toolset may also be including the Bootstrap css in which case you will need to go To Toolset->Settings and scroll to Bootstrap loading and disable it.
Please let me know if this helps. If the issue still persists please provide me with admin access to the site so that I can have a further look on this for you.
I took a copy of the site to do a test where I created a different post slider to see if it is an issue with the slider itself or a sitewide issue. Checking on this slider that I made on the copy I see that it works.
What i would recommend that you do is to remake your homepage slider without any customizations perhaps just starting with displaying the post titles only and check on the frontend to see if this works.
If it does then you can go ahead and continue setting back up the slider to look like the original.
Please let me know if after doing this the issue still remains.