Hello, In sketch, there is no tool to find what constraints or projections have failed. There should be a window where you can see which features failed. Now there seems to be no too whatsoever and also it's hard to even select and delete the constraints or projections from the sketch. The selection tool also selects stuff outside the sketch by default so there is a lot of going on just to clear one sketch through.
Also I've noted that the constraints don't follow your design very good.
Cheers!