Product price disappear using tutorial from shopify to choose a option (VENTURE THEME)

[SHIBdev]

I managed following tutorial from dev shopify ( https://help.shopify.com/en/manual/online-store/themes/os/customize/add-pick-an-option ) but i found some issue, when you choose some size, price product disappear from cart button..

 thanks in advance to everybody!

anyone is able help me? 

here it's url preview: https://an0f6f64yh6md3wn-53196980409.shopifypreview.com 

[SHIBdev]

UP!

[SHIBdev]

@TyW please someone from shopify can help me? it will be a good edit on this tutorial.. and for sure could help some people to get the same than me.. 

[SHIBdev]

the problem it's on the page, in mean if i refresh page it shows correctly on everything, but when i choose size without refresh, just appear price below title, but the price on the button cart doesn't shows.

[SHIBdev]

UP!