White square instead of icon

[sandbox4013]

I have white icons for all notifications type.

Currently, I'm refactoring my project, so got rid of font-awesome, bootstrap etc libs. I've tried to return them back (font-awesome, bootstrap, react-fontawesome) separately, but non of them helps. I could turn all libraries back and find which of them make react-notifications works, but I thought it must works independently from other libraries.

Also, I found similar question (hopefully) https://github.com/minhtranite/react-notifications/issues/5, but solution didn't help me. I guess webpack is culprit, but it's not my strong side. Any advise?

PS: It's how i added notifications to my project; I'm using npm start to run app;

[tjrexer]

This is similar to other users issues.

https://github.com/minhtranite/react-notifications/issues/46#issuecomment-576861898