To reproduce:
1) Open attached project and scene in it
2) Move your scene view so that the smaller model would take almost all of the space in it

Expected: It renders all the textures like the big model
Actual: It doesn't render most of the textures

If you zoom out the view, eventually the textures start rendering, but by then you need binoculars or good glasses to see the textures

Reproduced in 5.3.5f1, 5.4.0f3, 5.4.4p1
Reproduced even more severely in 5.5.0f3, 5.5.0p4, 5.6.0b4 - the zooming out doesn't help in these versions