Hello,
SelBrush in addition to correct selection is selecting some mesh faces outside of the viewport.
Just when I started to use some more clever selection methods, to save my time and sanity, this happened to me:
FILE:
zlew.3dm (2.5 MB)
I was cleaning this hole 3 times before I realized that there must be something wrong.
It went unnoticed but I think it is important feature which looks broken. Can I get some confirmation if it’s a bug and we can throw it into the youtrack?
Thanks, checking now…
I see in that with RealTimeSelction = Yes, it does not behave as I expect but I do not get extra selections either. I’ll poke at this some more. Do you get the extras if RealTimeSelection=No?
-Pascal
You got to look closer Pascal 
If you really zoom in, then it happens.
It also happens with RealTimeSelection = No
Yep, I see it now, thanks - changing to a parallel projection should help for now when zoomed in.
RH-63430 SelBrush, SubObjects and Perspective
-Pascal