Bug after move. Call to connector returns blank?

Hi guys,

Apache 2 running on XP, PHP 5+
Weird one. Moved site, thought all was well.

Problem
System Settings page blank, and other manager pages, but not all of them.
Namespaces - is fine, loads up ok.

Looked at connectors, and the call to /connectors/system/settings.php
Returns blank?
No errors...hmmm.
Anyone know what might cause this behaviour?

If you used FTP to transfer the site, it's not uncommon for one or more files to be corrupted or missed in the transfer.

make sure you clear your /core/cache/ folder, especially after moving to a new server; or ideally before migration to limit the file transfer size as well

And clear your browser cache and cookies.