Quoted from ccbiggsoo7:sad, jjp doesn't supply parts we all need for these games, its ridiculous actually.
This really is a supply chain disruption issue. We depend a LOT on everything in China working smoothly.
I would highly recommend that EVERY Wizard of Oz owner place an order as soon as possible for the 2.0 light board upgrade. Get it in your hands and you'll be ready for when your 5v, or 7.5v system starts having problems and eventually fails.
My (2.0) lights are working perfectly. No weird flicker at all.
Get the kit now. You are going to need it someday.