I upgraded Elasticsearch from 6.8 to 7.6 and after the upgrade values returned in the documents are all NULL.
I do see the values coming in Debug information and total count is also correct but not sure why documents are NULL.
I tried suggestions mentioned in ElasticSearch NEST - all fields are NULL and https://stackoverflow.com/questions/58175271/elasticsearch-net-nest-all-result-hit-fields-are-null-but-results-are-there and still no luck.
I also tried adding property name and making them Pascal case and still no luck.
document is elasticsearch:
any suggestions ? I don't want to rollback to previous version.