I am cloning _json sourcetype on managed splunk cloud to new custom name , the logs are not coming from log4j configuration

[Nikhilsplunker]

I have cloned a _json sourcetype to a custom sourcetype name and gave the correct URI for managed splunk cloud , still not being able to send logs to managed splunkcloud . I have also created a custom sourcetype cloning json_no_timestamp , it works, what are we missing
1) Is the issue on sourcetype definition or log4j configuration?
2) How to correct it ?

[Nikhilsplunker]

Thanks will have a look and post back

[woodcock]

We need more detail. In any case, check the error logs for splunkd and there is probably something there that you can fix.