Steve:

Don't be in a hurry to do anything quick - except get the glider into a
warm dry environment and leave it alone for a while. I saw this problem on
some of the control surfaces of my old ASW-17 (which had been refinished
years earlier with Prestec). By the time I had finished re-doing one
aileron - the bubbles on the other one disappeared!

The problem seems to be related to a combination of cold + moisture - but
the bubbles (at least the tiny ones) are not necessarily permanent.

Good luck

Roy