Not importing more than 1 track

Hello,

I cannot import more than one track on Locus Pro. It doesn`t show any error message. When it finishes importing a new track, it simply doesn`t show it on map, nor on Data/Tracks.

However, when I choose not to import, and only display, Locus will show it on map, along with the previous imported track.

Any idea why it`s not importing more than one track?

Thank you

Edit: Nexus S running Android 4.1.2 and Locus Pro 2.6.3