Problem with Promo price in Configurable products

[AlexFisherman]

Hi,
I have a problem with visualization of Promo Price in Configurable products. The old price is struck through and the new price is visible, but it is not shown as a promo price.

My simple product is OK and I want the Configurable product to look the same.
Magento ver. 2.2.1

[Damian Culotta]

Hi @AlexFisherman,

I don't remember the default behavior but what if you compare that page against Luma theme to be sure if the difference is because Magento and the core feature or your current theme?

[AlexFisherman]

Hi,
we compared with Luma theme, but the result is the same. Obviously the problem is in Magento. We tested the case in version 2.2.2 but it was still the same. Can you help me with this problem?