eba I'm sorry to hear you're having problems. Since 4.2-beta has been released, could you please tell us if you are referring to the "latest version" of 4.2-beta or the latest version of 4.1 (i.e. 4.1.24)?

eba I see. Then could you please send us via email what unpacks don't work so that we can reproduce the problem?: contact@esotericsoftware.com