I'm using a NopCommerce 4.1 version and I have two currencies on my stores:

Dollar
Mexican Peso

In Dollar, we only use "$", just keep blank and the dollar sign shows, but in Mexican Peso, we use "MXP$", when I put "MXP$" in custom formatting inside my Mexican Peso currency, all the prices is gone, just show "MXP$" and doens't show the price, in home page and in product page, I have tried with $, without, M, MX, MXP, MXP$, MXN$, etc, doesn't work.

It's a bug? How can I solve that??

Here's a image who shows what I'm talking about.