Glitchy pipe bends (using round molding)

[ChiefTesoroTX]

When pulling moldings as 3D pipes, every so often I get a glitchy bend.  I've not been able to figure out how to repair them without deleting and redrawing.  Is there a quick trick to reset these bizarre angles?

[rwdozier]

I am curious as well. I do this for now by adding a short length at 45° to the other and just overlap them to make it a somewhat clean 90°.