Thanks, found it.
You're right, your taxation went from 26.92 to 26.89 and your freedom from taxation went from 67.01 to 66.84.
I don't have access to technical, so I can't comment on whether one stat is directly derived from the other, but it looks to me that your spending went up a little, and your industries went down a little.
I note the numbers changing are very very small. If taxation had changed by a large amount with freedom from taxation going the same way, I think we'd have an issue. As it is, this is likely just to do with either a rounding error, or these stats being calculated at different steps of the process.
Nothing within the issue code looks out of place, so I think you'll just have to take it as an eccentricity of the underlying engine. Maybe take it to technical if you want clarification on how the stats are calculated?