To eliminate the program or language file, when you change back to 2016q3 map, does it happen again?
If not, it must be a bad 2016Q4 file. Delete all
files and add one by one testing after each new adding a map, then add the other files one by one untill you find the culprit. Download again a new map for your country in case that is the bad one.
Anyway, it can be any file in the 2016Q4 set, even non map files like fsp or fda or .... Rumours say it's caused by .fsp files, extendedPOI files, no one seems certain which one.
What country are you in?
As a workaround, this torrent file seems to be the seeder of not a single corrupt file
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Another issue: do not install .fds. These files are useless for most users. .fds is only supported in Igo 9.15 and above , in particular Becker, Falk, Nextgen (and analogues). To activate the content one needs a special license that may appear for free (or not?) to owners of Becker devices. Most likely you have to buy it.