Salesforce changes do not trigger Marketo Smart Campaigns

[Anonymous]

I have a smart campaign that triggers when a field equals X. 

If the field is changed in Marketo (though a form or in the lead record), the smart campaign is trigger. 

If the field is changed first in Salesforce and sync to marketo, in the lead history I can see the field changing value, but it will not trigger the smart campaign. 

What am I doing wrong?

Thanks! 
Elena

[Josh_Hill13]

Can you post a screenshot?

What is the exact trigger? Perhaps the SFDC field is not linked to the field you are using in the trigger?