assume you're referring to this model...
https://belle-macchine.com/2014/03/07/nishiki-carbon/
I have a Specialized Allez Epic w/ DA 8 STI which has similar construction (carbon tubes, alum lugs and fork).
there were reports of frame failures due to bonding issues in some of the earliest Spec models. mine is a 2nd gen and has provided 25+ years of almost maintenance-free riding. put 80 miles on it this week.
if your bike has Superbe Pro components, they are outstanding.
post a photo once you're able to...