On the product galler after choosing one option, in this case 30 ML and the scrolling through images, the other option does not show. Please check Loom video below,.
Sorry to say I do not fully understand your issue. Could you please elaborate on your concern more with some useful Screenshots so that we can better understand and assist you accordingly of which issue you have faced. Also share the wp logins details of your site so i will check and give you a possible solution.