ZBrushCentral

Z Brush UV issues with Non-existant faces

I have been working on a sculpt of a water pump. I discovered upon exporting my normal map, a long thing line running through the whole uv on the lefthand side. This line only appears in z brush uv’s and the exported normal map and not when I export the model. I would like to transfer the data to a mesh i know is correct but it doesnt work.

Pump.PNG
The pump in question.

ZBrushUV.PNG
The Uv in z brush.

NormalUv.PNG
The normal map, notice the blank line in the top left running through the shells.

UV
The uv of the exported model at the lowest subdivision. The line appears in the every level of subdivision in z brush.

Does anyone have any advice? Id rather just not scrap my work but Ill probably just redo the sculpt tomorrow. Id like to avoid this happening again in the future.

EDIT.
Okay i uploaded this and then literally 30 seconds later i found out the one my shells was just barely hanging off the 1x1 space and thats where the streaching was coming from.