the built in activity starter is not able to work with boolean values…
you might want to try the Activity Starter Extension by pepemont, which additionally is able to pass boolean and long values
read the short documentation about how to use it
Any key starting with “B.” or “l.” will be passed as boolean or long respectively.
see also this thread
Taifun
PS: a link to those threads might have helped to not again repeat what already has been said elsewhere