price is calculated incorrectly for variable product

for woodmart 7.03, the product price times 4 is taken for a variable product when the quantity is increased from 1 to 2 or more.
1 piece costs e.g.: 10 € 2 pieces do not cost 20 € but 40 €.
How can this be?

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Hello,

Could you please check how it works with some default WordPress themes like TwentyTwenty or WooCommerce Storefront to understand is it our theme issue or not?

I look forward to hearing from you.

Kind Regards

[Author]

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