I am having some similar problems with the current build I loaded yesterday (9/25) on Fuze Version 1 (not 2). The release number was: r28159-100924. There are a couple of themes I had problems with.
Beobox - happens when I try to navigate aware from the theme selection screen
(domain 0, fault
Azure+ - happens almost immediately, I do not have to leave the theme selection screen
Azure - happens when leaving the WPS
I have tried a number of other themes that seemed to work fine: Air, Amarok, BlacknBlue_Glass, Boxamp, Cabbie2, Cabbie3, Cabbie3-Blue, Darkness and Ultima.