It is all the URLs. As soon as I start importing over 10 pages it gives a 504 with PeepSo activated.
If all plugins are deactivated and the 2014 theme installed it randomly stops importing the events and does not complete the load of the page leaving me with a half done import as per the image in the first comment I made. If I restart it’ll stop at a different page so I can’t identify a URL that is causing the problem. It appears it just times out due to the amount of pages I’m importing.
Update: If the admin page IDs are limited to 10 it works fine, apart from it does still throw up a 504 after importing, but the events are at least imported.
It appears that it overloads the server with more than 10 Page IDs.
Just updating: I have it working again without plugins and theme installed. For some reason it wasn’t before. I’m presently testing with each plugin being switched on in turn.
There’s a possibility that it has a conflict with PeepSo.