Using Quick Featured Images Pro 8.3.1 and WordPress 4.8.3, and the ‘Use first content image’ rule when saving posts, we’re getting a Cloudflare ‘error 502’ when updating posts. When returning to the post, the content seems to have saved ok but the featured image hasn’t been set. When I deactivate QFIP we don’t get an error when updating posts.
We’ve used the plugin for a while very successfully and find it really great. What I can’t remember is whether this started being a problem only after last updating the plugin and which version we had installed previously (there’s a good chance it wasn’t the previous version as there’d been a gap in our updates).
Could I try installing previous versions to help work out whether any of them work ok? Or could I give you access to our site to see if you spot something that’s going wrong?