“Thousands separators” is not displayed in the labeled features in ArcGIS Pro,
Despite the fact that showing the “thousands separators” in ArcMap affects directly the labeled features, this appears not to happen in Pro.
Were you following this method?
How to: Add Thousand separators in Pro
I bet you forget to save your field property changes and switch to Python for labelling.
I never selected “python” before. Selecting it resolves the issue.
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