I would like to know if someone had an issue with printing after running a flex app application.
you might have to describe the behavior a little more.
@genesiochagas there a many things that can cause this. Was a printer driver installed would be my first question. FlexApp only layers the application. It does not connect the printers.
FYI: There are several hotfixes for ProfileUnity 6.8.4 that may have resolved this issue. Please check out the hot fixes on our support site.