Not enough info to make an educated guess, but I will assume that you are using a waterbased adhesive and maybe you are sweating a bit more because as you adapt to your environment your body chemistry changes. Blood pressure, body heat, STRESS and humidity will affect the reaction of the adhesive. I have days where that happens as well. When I used a waterbased adhesive and I "shined" more often, I would use a little loose powder with a small utility brush. (Covergirl 115 for light skin and up for darker - found at any drug store or Wal-Mart type) This will also remove tacky feel when glue goes forward of hairline. A little on your fingertip will also work, but the tip of the brush will actually get into the mesh if the shine is back from the hairline. I hope that this helps.

Zappa