(On a side note, why is there not an Issues sub-forum here??)
- Create a Signature Track
- Insert any time signature at any point in the project.
- Select the time signature, either by lasso-ing with the select tool or directly clicking on it.
- You will see that the time signature gives no indication that it has been selected/is not highlighted, but it is indeed selected.
This applies to single or multiple time signature selections in the Signature track.