Polish letters displaying incorrectly (latin-extended)

Some fonts are not displaying correctly with polish alphabet. I can see them only if I select the text or if I'm in "text edit mode", but not when the text layer is selected/not selected. I have noticed this behavior recently (it used to work just fine a couple of months ago).

I can't work because of that with fonts I want to use (official fonts with latin-extended support). This is a must fix asap.

Font used  in this example - montserrat.