According to the new update you can’t paste your copied text into the field of the Map.
Do you mean where it says “Search for Address…” in the attached image?
This has also been reported in this topic, http://support.advancedcustomfields.com/forums/topic/cant-paste-into-google-maps-field-since-update-5-3-1/
but I’m not seeing a problem. I will post some more information there
I’m seeing this with Opera 32.0 on OSX as well… which right now is really annoying for entering Japanese addresses on black-buddha.com.