Why did that stop working?!

I worked up the gumption to get started on doing all the facial rigging on my current model (one of those fiddly bits with lots of stuff going on), when I quickly realized that the vertex weighting on the mouth no longer existed.  I was sure I had done it already and got knocked out of my work mentality and dreaded the apparent setback I was facing.

Making a new character is one of those massive undertakings that you have to focus on the task at hand or you can get overwhelmed by all the work involved. So reaching a point where a fairly involved task that was believed completed a while ago suddenly needed to be done again kicked in that overwhelmed sensation.

I stepped away for a minute then looked back to confirm that I had completed that previous task. I did. I also realized that the way I was setting up the rig would work fine with that previous save. Phew. I was really having a hard time thinking about having to redo all that work when I was mentally so far past that point on this project.