I canlt reproduce the CTD. I started with the UK in 1936 and transfered the entire home fleet into a new unit (no CTD). Then I tried doing the same with the 2 infantry divisions in Bristol (again the game kept on going). Thridly I tried it with 2 airunits (with strategic redeployment I built a 2 airunit in London) I transfered them all out and no CTD. I think that some wide awake Beta has already reported the problem and the bug fix is currently in testing. You not have long untill this is sorted.