Hi @hobab_leo, thanks for your reply, I took a look at the published site version first, it seems there are some custom code errors on the fullpage.js plugin:
I would perhaps create a duplicate of the site then remove the custom code, then republish and check if the hover animations work as expected.
For the current project, I would fix the errors or remove fullpage.js and then republish and re-check.
Let me know when that is done and I am happy to take a look further.
Thanks in advance.