Since the last update I have the following problem. I have a plot including a ribbon using pgfplotsx. It automatically includes markers on the ribbon and on the mean, which I would like to remove both.
I have never used pgfplotsx, but what happens if you set the marker size to zero? (ms=0, alternatively a very small value) Can you set the marker color to false? (mc=false) May also have to set the marker stroke color in the same way (msc=false). Alternativel, set the marker alpha value to zero? (ma=0, msa=0).