Power Query - Errors in appended not appearing

[dhanamasala]

Hi All,
I'm new to Power Query and am puzzled by something - I have several table queries that I have appended together into one query that shows "49 errors" when I click the hyperlink the query appears "This table is blank" Is this something I should be concerned about?

 

[ImkeF]

Had the same the other day.
Looks like a bug in my eyes: Transformed a column to decimal, but some fields haven't been changed, instead emptied without an error-message.
In this case: Something to look for & report the bug/send a frown to the team.