I’ve just had a purchase on an OTO page via the Paypal app. The OTO page has a dropdown with color options. I did this as suggested in this thread (How To Easily Add Product Variants To Your Clickfunnels 2-Step Order Form? - #19) however the chosen color was not recorded in the CF profile of the customer which I believe is because the payment was done via Paypal.
I previously did test payments via our payment processor NMI and variants from the OTO pages got recorded on the CF profile.