previous apps not opening in IB3

reducing app size

New App not showing any elements except the background in interact mode

pages replaced with bogus pages

audio request

INTERACT to check page just brings me to list of apps but won't open the app or page

manage action sets moving up and down by layer

interact player not goinig past "loading" cover page

link element to an erase action

What version of IB should we be on now? 4.0.1 build 380?