Problems with baking Ambient

#1

Guys tell me why this is happening? Bake Ambient card and that’s what it gives me:

increase in Search envelope nothing happens, the result does not change :banghead:

#2

Flipped normals?

#3

normals look right Guess what else can be?

#4

Are you using any lights other than skylight or something? If so remove it. Also double check the envelope, may be it is not covering everything.