Remove duplicates not removing all duplicates

[Wilhelm]

I have a table with a single column which I remove duplicates from (default function).  When I view the data, there are 7228 rows and 7214 distinct values.  What am I missing?

[v-chuncz-msft]

@Wilhelm,

This may be caused by case sensitivity or trailing blanks. You may add a calculated column to have a check.

Column =
COUNTROWS ( FILTER ( Table1, Table1[Column1] = EARLIER ( Table1[Column1] ) ) )

[Wilhelm]

Thanks, @v-chuncz-msft.  That's a great idea to check for text interpretation (case, spaces), however, I have removed all spaces using trim() and also confirmed that case is correct.

When filtering for a known duplicate before removing duplicates, all duplicates are indeed removed, but when the filtering step is deleted, the remove duplicates step leaves some of the duplicates.  This indicates that it is rather a set quantity / order issue than a text interpretation issue.  Any thoughts?