Short update, since yesterday things get back to "normal", so I'm not able to boot with newest kernel without nopti switch :-(. However, I'm in parallel trying to solve an issue with GPU on Leap 42.3. I have installed leap 42.3 on separate HDD and do testing according to advice's in another bug. On leap 42.3 with latest kernel, there is no issue with boot procedure. It is working perfectly fine, so maybe newer kernel will solve this issue? can we check this anyhow? Is there any option to have on 42.2 the same kernel as on 42.3?