Photoshop shuts down over a specific piece of text

Originally I copied and pasted from a client’s document to mine in Photoshop. The problem text includes these words: Post Office. Any attempt at changing the font for those words leads to the app shutting down. It doesn’t appear to be font related because no matter what other font I select, the app shuts down. No other word within that paragraph is affected as I have been able to change those, no problem. I’ve tried restarting. I’ve tried manually typing in the word rather than a copy and paste. I tried a new page containing those words. I’ve tried clearing the font cache and a few others and nothing has worked. It’s the same thing. It always shuts down.