Problem with MapItems (KML-KMZ)
Two (probably) related problems with KML/KMZ:
I downloaded some KMLs from here:
and added them to MapItems. Locus opened and displayed them well, but zooming was very slow. I dived into a file and saw they're referencing a remote stylesheet which itself references icons. But Locus wasn't displaying the referenced icon, only the default brown "i". So I assumed the whole remote-stylesheet thing didn't work (though Locus shouldn't have to try it again on every zoom, slowing it down considerably...)
=> Problem 1
Now I download the icon locally, edited the KML and packed it together with the icon into a KMZ (I attached one). Added that to the mapItems folder and voilà! Two Android 5.1.1 devices (Note4 with CyanogenMod and S5neo with Samsung Stock ROM) display those KMZ perfectly and without delay.
But my new Tab S2 with Android 7.1.2 still fails: After tapping the Eye icon, a progress bar appears for a split second and then nothing: No error message, but the eye is still white and nothing is displayed.
=> Problem 2
Now I unpacked the KMZ again and tried it: The KML opens, but the default icons are displayed again, not the hut.png. I tried the unpacked version on the other phones: All fine.
Can't imagine what's different on Android Nougat... It's not the endles Android-with-external-sdcards story, I got the mapItems folder in the default internal location.