Okay so I turned on WP_Debug and got this error message: Strict Standards: Redefining already defined constructor for class wp_memory_usage in / ….. on line 39
When I saw this I thought maybe it is an issue with the php memory. So I checked the php memory again – it is set to 256mb but turns out WordPress was only able to use 40mb. I thought I finally found the problem, set the limit to 128mb using define(‘WP_MEMORY_LIMIT’, ‘128M’);
However the problem still occurs. I have no idea what to do at this point. :/