Error with prices

Hello,

Our default currency in store is EUR, and PLN is configured with an exchange rate of 4.25.

The currency conversion for product prices appears to work correctly. However, the additional product options (custom field prices using the mc_unit value) are converted incorrectly.

It looks like the mc_unit value is being applied in reverse. Instead of multiplying by the exchange rate, the plugin divides the amount.
Example:

Additional option price: 9 EUR
Exchange rate: 4.25
Expected price: 38.25 PLN
Actual displayed price: 2.12 PLN

This issue started after recent plugin updates. Could you please check whether there have been any changes related to mc_unit calculation or currency conversion logic for additional product options?
Thank you for your assistance.

CURCY VERSION: 2.3.13
WORDPRESS VERSION: 7.0 (We also tried restoring the previous plugin version, but the issue still persists).