I’ve never run into this before so I don’t know if it is a funnelish problem or a clickfunnels problem.
I created a new split test in CF and when I tested the variation the credit card fields do not show on the page (see image). If you refresh the page, the fields show for a second and then go away.
I am using paypal v1 and yes… I gave the variation a unique url and added that exact url in the optional variation field in the funnelish settings.