I believe you already fixed that, but let's keep my answer for the future polish beginners 🙂 You need to find any font you are interested in on the Adobe Fonts webpage and select there a Polish as a supported language. (screenshot attached) Then you can easily find which currently installed fonts support polish characters or which fonts you can add to your Adobe CC to support polish chars. Tip: Sometimes, I'm experiencing such issue like: I can't write polish characters, even with proper font selected in e.g. Adobe Premiere, but I'm able to write a sentence in polish in notepad and paste it in Adobe Premiere (without losing polish chars). It's not a solution, but only a kind of workaround which I'm using in my everyday job (unfortunately), but yeah, at least it works 🙂 Cheers!