Hi Simon,
I just purchased the Pro version yesterday and I ran into this exact same issues: unable to delete Post-Block/Post-Grid and “Filter text overlaps with the Elementor pencil icon”.
To address the Filter text overlapping the pencil issue, I added a temporary 30 or 40 pixel buffer to the element, so the FIlter text is well below the pencil.
To delete it, I created a new section, dragged the Post Grid/Block to the new section, and then deleted the new section.
@Raghaven-dra – i haven’t tested this in incognito or with the JS console open. I’ll test this later today or tomorrow and post a follow up.