I got a humble bundle with a code for the plus version of this and I activated it, but every time I try to do something with its features it tells me im still using a free version. I make sure to sign in on the program but it keeps saying I am on free version. Any advice?
. . . . I make sure to sign in on the program . . . .
Is the program showing you are logged in? Depending on the version this will see either your email address top right of the program main window or in the top right of the Start screen.
Did you download and install all the extra content, Soundpools, Instruments and Features, that became available?