Confused: Lead added to campaign results that wasn't a program member

[Anonymous]

Hi, I've just launched my first program which includes a smart campaign to send an email to members of a program. I manually imported members of the program via a CSV folder. As part of the flow I added a 'change program' status to visited or engaged depending on which web pages the leads visited after receiving the email. I set the smart list to 'member of the program true'. 
However, when I looked at the campaign results I can see a lead has been pulled into the results for clicking the website link, but they weren't a member of the campaign or program. 
Luckily this lead is a colleague but for future reference can someone explain why/how this has happened? 
Thanks 

[Kim_Allen]

Hi Louise,

Did you make sure the filter logic was correct, "AND Memebr of program = true". I'd look at that colleague's lead activity history and see how she came into the program.

Kim

[Anonymous]

Hi Kim, in the 'Smart list' I have member of program (with correct program name) and true.