Thanks for contacting us, and sorry for any inconvenience that might have been caused due to that.
Please navigate to WP Dashboard > Rank Math > Status & Tools > Database Tools and Recalculate Scores.
We have added this tool to update the score of the posts in bulk. Please use it and see if that resolves the issue. Once done, it should show the same score in the list view as you are seeing while editing the post.
Let us know how it goes. Looking forward to helping you.