L/R Balance Chart display of 0 when other values present

[ph4r]

On Ride Page, Graph for L/R Balance shows 0 values as 50 instead of 0 when L/R Balance is populated. I do some single-leg drills, and while I can clearly see the values from Left Leg (It goes to 100), the right leg is hard to see as it is drawn as 50 instead of 0 as in the file. In my case, Power is still present, and TE shows close to 100 for the Right Side when this happens and Right PS was present as well.

[amtriathlon]

Duplicate of #3473