It seems the wp-headless plugin is not rewriting the image/media URLs (rewritten by the WP offload plugin) in the json file. The output json seems to be having the local media URL in it. Also, the featured images are not being pulled to the json file.
Using the latest/updated WordPress + ACF PRO + Amazon Web Services + WPoffload lite
Also one more thing, there is exactly another plugin (https://wordpress.org/plugins/wp-headless/) with the same name in the WordPress repository. Thus WP is pulling an update for it.
It seems the wp-headless plugin is not rewriting the image/media URLs (rewritten by the WP offload plugin) in the json file. The output json seems to be having the local media URL in it. Also, the featured images are not being pulled to the json file.
Using the latest/updated WordPress + ACF PRO + Amazon Web Services + WPoffload lite
Also one more thing, there is exactly another plugin (https://wordpress.org/plugins/wp-headless/) with the same name in the WordPress repository. Thus WP is pulling an update for it.