Noticing something in common with all similar masks- Blemish on Left side of mouth

Hi guys,

Anyone notice on most Myers mask that looks like it derived from some of the same original molds there is almost a blemish at the corner of the mouths of the left side of the mask.

Is this because an original don post mask had this and these masks were pulled from that.

Id say a good 50 percent of all masks have it especially night owl masks.

Anyone know about this or can share information on this.

Thanks

Most people sculpt the blemish on since it was there on the hero, not because they originate from the same molds.