The description for the path says:
Path of the Seeker
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If multiclassed to Rogue, 2/3 Cleric levels count towards specialty weapon and uncanny dodge progression (24 levels of Cleric gets +1 AB for Finessed Weapons, assuming having multiclassed 3 levels of Rogue).
Scaling for Lightly Armored feat does not apply.
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I've made a 16 Rogue/14 Cleric, and I get no bonus for the Lightly Armored feat. Shouldn't I be able to get a +4 (16/4)?
Looks like the cleric levels disable the feat.
The character got the +2AB with a longwsord, but no lighty armored bonus at all with 26 dexterity and a studded leather armor.