Hi, Notch Team.
There seems to be a problem with default UVs on the Sphere 3d shape. Screenshot attached.
To repro: take any texture from here: http://planetpixelemporium.com/earth.html.
-Andy
Hey Andrei, you can use the mapping node to choose a different UV projection. The mapping Node goes into your material node.
Hi, Alberto.
Thanks for the hint, but I’ve already tried that. It gets even worse. 
If you managed to achieve a good result by using Material + Mapping nodes, please attach your file.
-Andy
Andrei: Yes, this is a known issue and is in our pipeline. In the interim, you will need to import a sphere from another package if you wish to texture map. Tx. Luke