2.4 - somtimes returning array instead of page (admin only)

[AlexL]

Hi guys

OK - so I've upgraded from 2.3.7 to 2.4

- I removed and copied wire/

- I run nginx using configuration here as a base

- I'm on PHP 5.5.9

Symptom

When I select field/template from the pulldown menu or from the Setup page I SOMETIMES get returned an array

ie - 

[{"id":29,"name":"basic-page"},{"id":43,"name":"game"},{"id":1,"name":"home"},{"id":45,"name":"platform"},{"id":26,"name":"search"},{"id":34,"name":"sitemap"}]

This is in plaintext on the screen - other times I get the appropriate page

All other function within the site and admin interface appear to operate completely fine.

Any suggestions ideas on where to go for troubleshooting?

Thanks!!!

Alex

[AlexL]

Hi guys

I have resolved the issue -- it was to do with my fast_cgi parameters (particularly cache) in nginx.conf.  I have put these back to default and the error has gone away.

Alex