First, I am guessing you've already read that most folks don't soak chips.
Next I assume it smoked to season your box, so we know it worked?
Check the position of your chip tray on the elements upon which it must sit to ensure a good snug fit.
Next ensure you are not using "chucks" instead of chips.
Turn your themastat higher and ensure you see the light come on indicating that the heater is in fact heating.
Is your top vent at least partially open, and has not be close by accident.
If your element is heating, your dry "chips" in the tray are making good contact on the heating element, and the air is flowing you should have smoke. If you have wet your chips, try pulling the tray and dumping them and try some dry chips.
PS if your heater is working your meats will not ruin, you are still cooking, you may just miss an abundant smoke flavor. And if doing a but and a brisket you have plenty of time to figure it out. BTW you actually got a whole butt and a brisket in an MES30? Heck I have cut a brisket back to just get it in.