Something is going on with the border-radius in TW mode.
Note: This also happens with border-width,margin and padding (and might apply to even more properties but didn’t check everything).
I think this has something to do with the logic that has been implemented to apply the most accurate TW class, as I couldn’t reproduce it with the top/right/bottom/left properties.
Thanks for the report.
We are aware of certain situations where there might be misplaced values on properties that accept multiple utility possibilities.