I talked with the technical support people at Polaroid today.
They are working on finding a solution to this issue. Polariod is concerned and understand how important this film is too a great many people, "not just the folks on APUG "(my statement, not theirs).
They made some changes earlier in the year, and did run test on the newer version and the scientific feedback was positive. THey didn't check the moveability of the newer emulsion and are now working to correct the problem. They hope to have things back on track within 4 -6 weeks.