Just from the picture I see 3 points that stand out as problems. In the center feature there is a line going from edge to edge. This results in a closed contour (the perimeter) intersecting an open contour. SW can't offset the open one in the same manner as the closed. If you want it outside vs inside on the closed, the open can't be defined like that, it has to be left or right. You can't have both types in one offset. There are 2 similar open profile straight lines in the perimeter near the 12:00 and 5:00 positions. Try changing those to construction lines for now and see what it says.
SPR 647372 seems to be this same issue. If you delete all the On Edge relations, the warning will go away.