Photos crashes every time I manually type in keywords in "Information" box
I have been using the Photos app since it came out, and my library contains about 70K pictures. Yesterday something happened that whenever I try and manually add a keyword to a picture by typing in the information box, Photos crashes. I can still assign them by the keyword menu (command-k). This is a new behavior, and I cannot tell what I have done. Is there a way to fix this? If I rebuild the photo library, will I lose any keywords/faces/places information? I'm using Photos 5.0 (141.19.150) on a late 2015 iMac (Retin 5K, 27-inch) with 32GB memory. Thanks!
iMac Line (2012 and Later)