I purchased the “twisted” theme to get off to a quickstart and mostly everything has been extremely easy to edit, for some strange reason tho I cannot see the popup to be able to edit it (subscription form that opens when I click the button, Its clearly there when i go in viewing mode but not present when I try to edit it.
It looks like your public share link didn’t come through, can you update the post so we can have a look?
Without seeing anything, I am guessing the block you are trying to edit is set to Display None or has 0% opacity. If you make it Display Block instead, or 100% opacity, perhaps it will be visible in the designer.
Right when I open it up, there is a pop up window which I can click into and edit. Is this different than what you are seeing? It has an interaction on it that causes it to go display none and 0% opacity on load.