Stringing on one part of many in a print?

[Strick9 0]

I recently printed about 12 little shot glass sized parts in UM Clear nylon. All print settings were default with the exception of having the build plate adhesion turned off. Only one out of the 12 parts had stringing at one spot all the way up. It is of very little concern due to the use of the part, but i was curious about the cause. Anyone had this type of localized stringing on one of many parts printed at the same time? Any recommendations?

The highlighted part on the build plate below is the one that had the stringing issue.

[engr 2]

Are you using support material?

[XYZDesignPro 70]

Is the stringing aligned with the Z scar?