Hi Shabarinanth

Your system looks really good, apart from the hairline - excellent color and texture match. You really suit having your hair back.

The photo of the hairline is out of focus, and it would be good if you could post an in-focus shot. But from what I can see I think the most likely problem is that the glue got damp before it was fully cured, and has turned white, so that it is showing up under the base. What adhesive did you use?

In general, you have to avoid getting the glue wet for at least 4 hours after you apply it, and ideally 24 hours. So if you live in a steamy climate, do your application in an air conditioned place and stay in the aircon for at least a few hours. Obviously no gym or other sweaty activity.

Do you think that could be the explanation?