There is definitely something up with the approvals into Image Playgrounds etc...
I updated 2 M series MacBook Pros, an m4 iPad Pro and a 16 Pro Max. One of the Macs has been accepted into the Image Creation beta. I can open Image Playgrounds and make images. Those images sync to the other devices, but on all the rest it still says "Access Requested" You cant edit or create them on those devices. All 4 devices are signed into the same developer Apple Account.
So odd....but then again so has the entire 18.x beta cycle LOL