Can't add name since last update

Hello, all . First post here. Hope you can help. I have a Garmin GPS device that is a few years old (don't remember actual age). After entering an address I used to be able to tap the "i" (information symbol) in order to enter the name of the place where I wanted to go and save it. All of a sudden I can't do that any more; perhaps a result of the latest update (?) . Any ideas why this is happening? If it can't be fixed, is there any way to undo the last update, like you can do on a computer? I appreciate any assistance you can provide. Thanks in advance....Mr. Ed

 

Thanks for the reply, Nuvi-Nebie. I believe my Garmin is model 5;don't have more info at moment. The last update wasn't initiated by me, but appeared on its own, if that means anything. I haven't changed the map; I assume it's the same that has been there for years. Fortunately, I can use my Android phone and other Android devices for navigation, but much prefer my trusty Garmin for the task I can still use it, but have to store locations under addresses only, no names; sort of inconvenient. Thanks for your help, though.
Mr. Ed