Hi Jorge,
In CJ20N i wanted to see if these projects where you are not getting AVAC activated. Is the BUDG status active in the status bar.
From the Screen shots I can make out that there is no budgeting done for these projects and hence no Activation of Budget Controls.
Please create one dummy project in your development environment with this Budget Profile and see if the AVAC is getting activated for this project or not...
Cheers
Sammar