Part 27 completed…
After completing Part 27 @15:23, both arms have a slight bend at the elbow while in IK mode. I just finished rebuilding both arm and everything was working perfectly until this point. The rig and measurements are scaling correctly and everything else is working as it should.
This image shows the leftForeArm_IK_JNT seemingly stuck in a rotation derived from the upper arm and forearm distance measurements.
This image shows the leftForeArm_IK_JNT connections in the Node Editor.