Content Storage Migration Follow up

Hi, it would appear that you closed the original topic Content Storage Migration I just need to follow this up as there is an issue with the migration for the site.

I have noticed that the corner stone migration has done 2 things incorrectly:

Sometimes it pulls in a random featured image which does not actually exist in association with the post.
It also duplicates the h1 tag into the post content body, which is in correct.

An example is this post, where it has done both things: https://staging.healthinnovationnetwork.com/news/innovation-awards-support-next-generation-of-improvements-in-health-care-in-south-london/

Please could you look into this please.
Thanks.