In ArcGIS Pro 3.1 I've noticed an issue with changing the attributes with an Annotation layer and as far as I can tell it's not addressed in the latest patch.
If I have the text set to any of the "Narrow" options (which is what I usually use), and then I change the Character Spacing, it automatically strips the text back to "Regular" instead of Narrow. I then have to change it back to "Narrow" every time, which then retains the "Narrow" setting with the adjusted Character Spacing.
