Duplicate entry in Archive after modifying published date

I am importing Jekyll markdown files from my current blog into Micro.blog and many of my early entries did not have a date field. I added a “YYYY-MM-dd” date with no timestamp and it used midnight GMT, which showed up as a published date on the wrong day. I modified the published date to add a timestamp (noon) so that the published date was correct. Unfortunately, I now have a duplicate entry on my archive page:

https://micro.toddgrooms.com/archive/

I don’t readily see a way to clean this up. Is there anything I am missing here?

Edit: The search here did not turn up anything, but a Google search led me to the following topic and this might be what I am seeing: Strange duplicate post every time I edit the actual post, site pages or css - #9 by manton

Edit #2: Rebuild worked.

Glad the rebuild worked. Sorry about the inconsistent with that!