Question:

Why is the HTML of an Approved Email Template from Vault truncated when viewed in CRM?

Answer:

The Email_HTML_1_vod__c field holds the HTML on the Approved Documents and has a limit of 131,072 characters. This number includes spaces.

One possible solution is to use a text editor such as Notepad ++ to remove any unnecessary blank spaces. 

Related Documentation:

CRM Help Documentation: Approved Email Template