"Fi" and "Fl" missing in edit mode
I frequently print to pdf from the internet. When I edit those documents in Adobe, words that start with "fi" or "fl" drop those two letters and the lines go half a line out of alignment. I can copy everything after the word that starts with "fi" or "fl", retype the word before it and the word that starts with "fi" or "fl" and then paste the rest of the content back in and the issue is resolved. Typically, the font that is printed from the internet isn't a font that exists in Adobe. I have tried just changing the font of the content but that doesn't resolve it. I also checked the font color to make sure the letters aren't just hiding in white. The letters are there in the original print.
Any thoughts as to why I have the issue to begin with? I'm on a Microsoft Surface Pro laptop with Windows 10 but the same thing happened on my Lenovo Thinkpad, Windows 7 and 10.
