[wp-testers] Fatal error pn Menu page

[ron at web-eagle.com]

I'm using the latest nightly build. Multi-Site setup.

When I go to Menus I get the following error:
" Object of class WP_Error could not be converted to string in 
\...deleted...\wp-includes\formatting.php
on line 433"

That's as far as I can get in Menus. Also I only get a header image on my 
main page.

I didn't upgrade the other sites in my network setup, so the menus still 
work fine there.

Anyone else getting this error?

Ron