Very weird problem with components

I can’t edit any instances on my homepage (other page are fin) because they are all turning transparent when I double click on them. Do you know what is happenning here ?

I tried adding/deleting component, same issue.

It’s only on the homepage.

Here is my site

nly: [Webflow -][1]
([how to share your site Read-Only link][2])

The problem appears to be within Section 4 on your homepage.
If you remove it, your component master editing works fine.

I haven’t dug deeper than that. I’d guess custom CSS or possibly some weird layout issue that’s confusing Webflow’s ability to render things. Maybe z-index related?