Tevo Tarantula incorrectly auto leveling of bed
From your configuration.h file you see that (in line 643):

#define MANUAL_HOME_POSITIONS


is not commented out, there is no // in front, so this means that manual homing with accompanying coordinates is enabled. 

This should not be enabled, as this setting is used by Delta printers only. This may cause the problems you experience as there may be some sort of a conflict between manual and auto positioning.