From the default view-userdetails-config.xml file:
<editable class="com.aprisma.spectrum.app.swing.table.render.PasswordCellEditor">
<param name="encryption">MD5</param>
</editable>
From the custom view-userdetails-config.xml file:
<editable class="com.aprisma.spectrum.app.swing.table.render.PasswordCellEditor"/>
</column>
The user had removed the <param> tag for the encryption.