incorrect angle joint display

[Catafratto]

from some time (with rel.2017 sure, maybe even with 2016) when I use the round unload in the corner joint the folded pattern is incorrect while the flat one is right. Does it happen to others? Is there any setting I lost on the street?
Thank you in advance.

 

[Matteo Cappelli dis.CAD]

Hi.
is all in function of the value that gives to the radius for the discharge and inside radius fold
example:
1mm sheet, inner radius 1 mm, drain size 3mm
works perfectly1mm sheet, inner radius 1 mm, drain size 4mm
works perfectlyas seen from preview, the exhaust hole must be greater than the development of the internal radius (ring tangency lines)

 

[Catafratto]

Okay, I figured out where I messed up.
Thank you so much!

 

[Cast16]

Okay, I figured out where I messed up.
Thank you so much!

I think autodesk mess in this case.
other software for what richer, if a corner joint is possible, they make you see it correctly:If that's not possible, they won't let you do it.