Alpha not concealing part of system eyelids

[xenR]

I have a DSD (Dark Spot Designs) Avatar Head atop the Maitreya body and use the second life avatar neck to transition so I made a custom alpha to reveal just the neck region in the head alpha layer. But my alpha somehow makes the system eyelids appear over my mesh head's eyes...

https://i.imgur.com/WvYngC2.jpg (the issue)

https://i.imgur.com/PmA4h4L.jpg (cleared up with full layer hidden)

https://i.imgur.com/v6PNNj7.jpg (and with my custom alpha on)

https://i.imgur.com/uJvg3H5.png (my alpha layer)

https://i.imgur.com/VjwSke9.png (my alpha layer overlaying the head uv for clarity)

My alpha does not come anywhere near the eye, brow, or eyelash region so I have no idea what I can do to fix it. Also, the eye alpha layer has no effect on the issue. Any suggestions anyone can give would be great. Thanks in advance.