Hi Rissel.
A few things to look out for when working with hover states:
1. Make sure all your components with hover states are set to the default state when you create / update the prototype. If they are set to the hover state, it is already "activated", so nothing will hapen when you hover the element.
2. When linking an element with a hover state to do something (transition to another artboard, scroll to, etc.), create the link while on the hover state of the component. The default and hover states can have different links. The default normally links to the hover state, and the hover links to whatever action you need it to do.
3. Nested hovers don't work yet. If you have a component with a hover state, and within that hover state you have another component with hover, the second level hover will not work.
Hopefully these tips will help you figure it out.
If not, upload the file somewhere and link it here, as Ares requested, so we can have a look.
Cheers!