Sleep Wake Failure(s) on Sonoma running on an iMac17,1

Installation was smooth and it runs pretty well – but whenever the iMac goes into stand-by, there's a chance I have to restart it to wake it. A kernel panic screen is vsisible when starting up.

panic(cpu 2 caller 0xffffff800519422e): Sleep transition timed out after 180 seconds while notifying clients about upcoming system capability changes. Suspected bundle: com.apple.driver.AppleIntelSKLGraphicsFramebuffer. Thread 0x79. Failure code:: 0xddf54efb 00000012 

or

Sleep transition timed out after 180 seconds while notifying clients about upcoming system capability changes. Suspected bundle: com.apple.driver.AppleIntelSKLGraphicsFramebuffer. Thread 0x79. Failure code:: 0xddf54efb 00000012 

In both cases the suspected bundle is the same (com.apple.driver.AppleIntelSKLGraphicsFramebuffer), does anybody else have similar experiences?

On my MacBookPro12,1 it's running great, no issues there.