Hi,
I think then that Vuforia: v. 7.2.20 is the problem.
unfortunatly, updating vuforia fails on my computer so I can't test on that version.
also, in the steps, you really only need to install the vuforia package from the ecosystem, PLayMaker Utils is up to date on that latest package.
If you don't need extended tracking, simply delete that action and check if eveything else works while I find a solution to install the latest vuforia.
Bye,
Jean