I use FTM 2012, but it may also apply to FTM -2104.
I have found that when I do a lot of edits to my Places database, that if I do not move the cursor from the just edited field, I will sometime have problems from simple irritations to hard lockup.
I experienced this when I tried to clean up the Places in a 10 year old database that I had imported from FTM Version 16. Once I got it cleaned up, maintaining it was simple.
Also I do not use the Resolve feature of FTM. FTM only recognizes current established communities, Many times my ancestor residence are marked by Post Office names, or a small communities that have nearly disappeared. Examples are Fairport, Chamberlain, and Massillon Allen Co Indiana. FTM chockes when it comes across Fairport, Milan Twp, Allen Co, Indiana.
I have standardize all of my Places entries to Town, Township, county, state. I do not bother to include the country. Street address I include in the Discription Field or the fact note, depending on its importance.