Punit Arya <arya.punit@gmail.com> writes:

It has been a month. Have you had a chance to look into providing more details?

I did not get the warning while using the latest Org (9.7.11) from the 
repo and minimal config as suggested in the page.

I guess I need to bisect and troubleshoot my config.  Do you've any 
hints where the warning is coming from ?

No idea. But this warning may appear for multiple reasons.
You may try to add
(setq org-element--cache-self-verify 'backtrace)
(setq org-element--cache-self-verify-frequency 1.0)

to your config, so that Org mode tries hard to catch any issues in the
cache. If what you see is related to the cache, you should be able to
see parser logs.