A default cube exported from Blender shows this issue(several vertical lines are dark) of baked AO in Substance Painter. I encountered this issue from texturing a model with a layer of dirt where I surprising found some lines have much more dirt than others. After some tests I found out it was the AO problem. Eventually I tried to use this default cube from Blender to see if there would be any issue. Again there was but I really don't know why. I never change export settings in Blender and he...
