We're using W3 Total Cache (configured to offload media to Amazon S3) and I enabled WP Smush Pro. The images are being smushed on upload, however, W3TC is uploading the original version to S3 rather than the optimized version.
I know that I could switch to S3 Offload, but I was wondering if anyone had a solution where we could continue to use W3TC to offload, perhaps a WordPress action hook or something that I could trigger on smush.
I also know that you don't support third-party plugins, but I thought that it was worth asking in case you had a slick solution in your knowledgebase.
PHP 7.1.17, WordPress 4.9.8 (multisite), WP Smush Pro 2.8.0, W3 Total Cache 0.9.6.1 (I haven't updated to 0.9.7 yet because the client requires additional testing).