I have it and have not seen this.  I just loaded it up and tried it with scaling, morphs and movement, magnetized and not, and with Include morphs and scales checked and unchecked and the only time there is an angle is when the thigh is moved to the side, but it's not a zig-zag like yours.  This was with PP2014 SR 5 and also with SR 5.1 (which came out just this weekend)...

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