There are two things here :
- First, B4 and B5 commands settings are applying to next sector (you can see it by changing the width value for sector 22 and you will see changes applied to sector 23 in the 3d view) so if you want to check sector 22 width you need to check sector 21 width commands
- second, there's effectively a little difference because pitlane includes sidelines (while they are separated for track) but I missed to add sidelines width in the command label
So the advice is : always trust sector windows (were all values are gathered in metres and degrees).
This has been fixed for next revision though. Thanks for the report