There is a new gakk about. I have seen it with some frequency over the last six or seven weeks. Whether it is entirely new, or a gakk that emerges when OII is removed, I do not know. I know it messes with the a/b in a new way, only part of which is its effect on gassing. I have noted some trouble gassing the 120's, but on the other hand had meth that gassed with one squeeze of the gas bottle. Go figure. This is not the thread to discuss the new gakk.
Snarg, I am curious as to whether you dried your solvent after the washes but before gassing? Even xylene, which just about will not absorb any water, can have numerous small water droplets clouding it. These will settle out in time, or you can dry the xylene with baked epsom salts before gassing. Try this on the next batch, not this one.
(I also note that if you have the new gakk, your xylene will go cloudy with a water wash, and clear up when you dry it. Worse than I have ever seen with xylene. )