The fact that you say the knobs are wobbly indicates to me that you might have forgotten to tighten the lock nuts on the pods... ( I think ) You'll see, if you remove the knobs from the pods that there is a lock nut with a washer against the body of the guitar. You need to hold the pod in place while tightening the lock nut. Once you did this you can put back the knobs and everything should be ok.
(Hope this helps)
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