Intel 7nm line has non-economical yields and is effectively a failure. They’re backporting their 7nm designs on to older processes at huge penalty to buy time for a new approach while putting out a couple flagships on the 7n line at a loss for appearances.
I think this is the 10nm process you are talking about here.
That's had a bunch of issues and is only now producing their premium mobile CPUs.
The 7nm issues aren't great but if it weren't for the 10nm disaster they aren't really more than normal slippage at this point. If it keeps slipping then they have problems.
Are they not delaying it year on year? I am pretty sure every time I read about 7nm of Intel over the years, it always says that it is just around the corner or it is delayed. I'd say the Intel 7nm doesn't exist nor is being worked on apart from slides.
At least that’s the word on the street.