Does turning off parallel optimization change anything?
Thread Starter
Anonymous User 13711045
(@anonymized-13711045)
Ha, I am an idiot. I can’t believe I missed that setting where it so clearly says disable if putting strain on your server. Thanks for the help! It works now.
No worries, there have been other issues that have caused it to fail too: other plugins doing weird things, server-side blocks, security plugins, etc.
If you have time, or have a staging site, you could try disabling all other plugins to see if that fixes the issue with parallel mode also, and then re-activate them one by one until you find the conflict. If deactivating all other plugins and switching to the default theme doesn’t change anything, then it probably IS a resource issue. For example, if your site generates 12 resizes, and you only have 4 connections allowed, that could do it, but that seems unlikely on nginx, as a low end server can usually handle thousands of connections per second with minimal config changes.