I have 2 URLs that have been in Discovered - currently not indexed state for more then 3 months. Upon doing a URL inspection I have gotten the following error "URL is not on Google". Attaching a screenshot of what is on URL inspection
Upon doing a live test of URL i have gotten the following result
from what I understand there shouldn't be a reason for them to not be indexed. I have checked Robots.txt file for any blockers as well. since this is a wordpress site I made sure to check if any pluging (yoast SEO) is causing a blocker, but that also isn't the case
I am facing issue mainly with "https://www.yapsody.com/ticketing/features/online-payment-gateways/"
IndexGuru or similar tools like that can likely fix it for you.