It doesn’t seem to be related to the server. The final error is indeed a timeout, the $this->dispatch() function from Pages.php is perpetually called with the same args.
The post you linked is exactly the issue i have. Thank you for linking this to me, i’m sorry I didn’t find this before posting despite my research.
I will get in touch with this post if a solution or a workaround is provided.
Would you mind adding to that issue that you are also experiencing this problem? It needs attention if it is still unfixed. You could link to this forum post.
I am going to try to remember to set up a dockerised Grav container, so that I can test it is still in the latest version, and the maintainers can reproduce more easily.
I’ve stared at that Page.php code for hours. There are undocumented and misleadingly named variables and methods that make it very hard to figure out. I didn’t find an effective way to trap the error either