Hi Stephen,
I use SF 15.4
When I want to create a custom template from the singlestep checkout then I get the warning mentioned below.
Even when I do not make any change in the template.
I do not use the new 15.4 checkout template because the pictures in the listing right in the minicart are way to big.
When you have 15 or 30 items in your basket the listing is very very long :-)
(by the way, how to change the size of these pictures, I forgot how to do -:()
Regards, Ton
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Minicart picture new standardsinglestep. TO BIG FOR LONG LISTING
minicart picture old size standardsinglestep GOOD FOR LONG LISTING