I have osquery 3.2.6 deployed to hosts, and am not getting any results sent to a TLS endpoint for a large majority of the hosts. INFO log has

database.cpp:131] Resetting the database plugin: rocksdb

every 5 minutes across most.

there is a --tls_dump flag that might help you debug things. Also, make sure all is working with file_system logger, local config before attempting to get tls working.