Windows 10 x64...fully updated 
 Intel Core 2 Duo E8400 
8 Gigs Ram 
 NVidia GTX 750ti   
 Hangs during "loading land surface" each and every time since the upgrade to v1.5.3 a few days ago.   
 I went as far as to re-install the last version - version 1.5.2 - and it STILL did this (but it hadn't done it the day before installing v1.5.3...weird).   
 I have already tried a repair as well as multiple reinstalls of a fresh version.    
 Log attached.