I can not know all Roms......
Thou hast created another empty FILES folder ?
In this folder, you have copied the entire folder FILES and .METADATA.XLM ?
Android (folder) >> Data (folder) >>com.tomtom.your_country (folder) >> files (created folder) <<< HERE put original tomtom files folder + .metadata.xml
EDIT :
However, the problem can be caused by your Rom.....
(.....and I'm not a wizard....)
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