Cannot find SFDC Campaigns in Marketo

Hi,

It seems like I can't ever access from Marketo, campaigns that were created in Salesforce. But when I create the SFDC campaigns from a Marketo program, it works. 

For example, I created a campaign in SFDC, but Marketo programs or smart campaign flows don't see that campaign, I can't find it in Marketo. However, if I create a SFDC campaign from a Marketo program, then other programs or smart campaigns can find that campaign.

Does anyone have any idea why this happens? It's a bit frustrating that SFDC campaigns created in SFDC aren't synched to Marketo. I already checked Adming > SFDC and they are synching properly. This has been an ongoing issue for us.

I appreciate the help!

Thanks

-Leticia