Discount price is not converted

Hello!

We have been using Curcy plugin for a long time, this is great solution!
However, we have recently noticed something strange.

After changing the currency, the regular price is recalculated, but the discount price does not change.

You can test it here, however, it does not work on the entire page.
https://en.cs-lab.eu/product/4-axis-cnc-control-system-csmio-ip-m-board-with-software/

In order to eliminate typical incompatibilities, I did tests by disabling the cache plugin and next disabling the range discount plugin.
These plugins do not affect Curcy’s actions.

The discount price field is the default field from WooCommerce.
Strange…

I would be grateful for any tips on how to solve the problem.