I accidentally added two “identical” custom fields using the three dots to the right of an String field → Aggregate → Count Distinct. I got two columns with the same heading (as expected) but noticed that one column had numbers with commas and the other had no commas: 7888 vs. 7,888. Both custom fields show that the type is Number as expected.
Why would the formatting be different on the second copy of a custom field?
This is reproducible on the one particular field I am aggregating, but does not happen on other similar fields. I hope it’s reproducible by others!