Are you bootstrapping the cantrips with the same tags and fields in the spellbook? Here is an example from the magus starting spellbook:
Code:
<bootstrap thing="spAcidSpl0">
<autotag group="Helper" tag="Shadow"/>
<autotag group="Helper" tag="DefSpell"/>
<assignval field="sSplbkFree" value="1"/>
</bootstrap>