My level designers have created the world but with bad parameters.
When they changed the parameters of the correct, the world does not want to load to the game.

Changed parameters are:
Area Size from 64 to 32
Heightmap Resolution from 64 to 128
Path Resolution from 32 to 64

When I load a new map, the game loads everything and stops responding without any error...

you can try using "world/build/clean all and build all"

if that won't help
run in debug mode
once it hangs, do menu "debug/break/stop debugging" and view your call stack (paste here)

Error resolved. Thanks!
I forgot check call stack when game stopped responding. Error was in reference to our function which load mini map of the new world.