Can sketch a .001" rad but not zero(not trying to regenerate a rad w/ a value of zero, looking for a sharp corner less a rad) when adding an extruded flange. This is a basic sketched profile and no reliefs are req'd- The fact that zero rads flanges can be sketched as an unattached extruded wall but not as an attached wall doesn't make sense In other words, you can sketch the profile of a staircase and not include rads at the corners and it will regenerate fine as an unattached extrude but you can not add that same profile to an existing part as an attached extrude w/o adding rads - This wasn't the case in previous versions Also, w/o toggling the mat side, the first attachment edge adds the rad plus the mat thickness - Normally when adding tabs/flanges to a sheetmetal part, the attachment edge was created w/ the OD of the flange in mind not less the rad & mat. (IMO) I know this is just a right to toggle the mtl side, but seems unnecessary - previous builds defaulted to the od of the flange/edge of part