Could you please elaborate on what you did to fix this error? I've tried using Don't Save Sensitive, but then I can't even run my SSIS package through my project; I get the same Oracle errors saying I passed a null password.

I've tried all the Protection Levels, and I've found I can't use the Server Storage protection level; I get errors when I try to save the package after selecting that, even though I am saving the packages to msdb. I'm currently only able to run my package through my project when I use EncryptAllWithPassword, however I'm getting the same errors as I mentioned before, when I run the package through a command line or using an Agent Job.