eTreX30: extra topocard's won't install Mac OSX

Hi all

We bought a Garmin eTrex30, thanks to we added a free topocard (all perfectly legal) from Belgium with MamManager, Mapinstall & Basecamp.
Works great, but now we need to change the map to France (for a little caching vacation) I downloaded a topocard from france via did everything like last time but the map won’t load in base camp.
Although that MapManager says the install was successful.

The weird thing is that I changed the name of the second OSM map. I have three; France, Belgium & the Nederlands. But they won’t install.

I haven no idea of the OSM installers work differently on a Mac than windows. I don’t have windows so I can’t compare.
I have the garmin MapManager where I can install my OSM map and then I have Garmin MapInstall to install the OSM map on my device.

So now I don’t have a clue what to do about this. Any ideas?

This topic wasn’t helpful.

This is a follow up from this discussion. The OP needs help cleaning up his multiple map installations on a Mac.

This post and the followups might help.