Hi @ShashikantP7021 ,

There must be OOB identification rules for each class of CIs.
Could you please brief on why you had created a new one to match names?
I am attaching a general support article for troubleshooting: 

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0869861#:~:text=It%20is%20imp....

See if this helps.

If my answer helped in any way, please mark it as ✅Correct & 👍Helpful

Regards,
Mahathi