When I try to save a new entry as a child under a Structure entry, I get the following error:
Internal Server Error
Object of class Craft\ElementCriteriaModel could not be converted to string
I also get the same error when I tried to move it out to it's own Channel instead, so I am not sure what could be causing it.
I have several fields in this entry, most notably the cause would be an Entries field and Tags field. Both seem to select the correct values fine.