One issue I discovered in the game is that both Offense and Defense DC have a default package named Default packages.
I can copy my default offensive package to create new packages, which is ideal, but after creating my default package on Offense, I can no longer copy my defensive default Package to build new packages.
I believe, when it comes to DC creation, the game cannot tell the difference between offensive and defensive packages, and it is therefore trying to copy the offensive default to the defensive default, which results in nothing happening.
The reason I believe this is because I created an offensive package named "Red Zone" and then tried to create a defensive package with the same name and I got an error message that the package already exists.
The problem is fixed easily by not giving my packages the same name, but the real bug is that the game itself has duplicated default packages which makes copying the defensive default package impossible