Not working with WooCommerce Currency Switcher

When I have anything in the basket and then I switch the currency, the discounts works like the currency hasn’t been changed. It leads to final price as zero.

More detailed: I have currency CZK, the price is 400 CZK. When the customer buys two pieces, the price is 300 CZK per item. I insert two pieces to the basket, the price is correct: 600 CZK. Then I switch to EUR, the ratio is 1 EUR is 25 CZK. The final price should be 24 EUR, but Bulk Discount still works with money amout 100, so the final price is 0.

Is there any chance to make this plugin compatible with Currency Switcher? Or is there any other solution?