AH1997

I have been using the 'add to dictionary' feature a lot as I am a student and very few technical terms are recognized by the spellcheck. The red lines under these words are one of my biggest pet peeves. Since the update, I have been unable to add anything to the dictionary, the words I previously added are not recognized, and I can't even just click to 'ignore the error'. I've been exclusively using the legacy version because of this. Was this feature actually removed during the update or was it just moved elsewhere? It seems like something that wouldn't be removed as it's such a standard feature in an word processing software. Has anyone else had this issue? Is there something in my settings I could change to get an 'add to dictionary' button to appear upon highlighting and right clicking a word?