Thank you for your post.
I am unable to replicate the issue under Mac OS X 10.10.1 (Yosemite) and FileMaker Pro 13.0v3.
In Manage Database, check the field name to make sure there is no leading or trailing space(s). If so, remove them.
Assuming the field is named properly, temporarily modify the layout and type <<name>> in the body part. Go to Browse. Does this work?
Create a new Text field "name1", enter some data, and change the merge field value to <<name1>>. Does this work?
Any other information you can provide may be helpful in narrowing down possible causes.