Having trouble modifying damage type with an effect.

I'm having some trouble with an effect. I apply an effect named "Smited" to an NPC and one called "Smite Evil" to my character. Everything seems to work correctly, the ATK, AC, etc. but the damage type doesn't change.

On the target creature
Smited

On my character
Smite Evil;IFT: CUSTOM(smited);IFT:ALIGN(evil);ATK: 5; DMG: 2; AC: 5 deflection; DMGTYPE: spell

I've tried different damage types but none work. If I just add the following effect to my character it works.
Spell Damage; DMGTYPE: spell

Any suggestions?

I'm using FGU and the PF1 ruleset.

Thanks.

@Kelrugem answered this on Discord.

Quote:

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The DMGTYPE is not a targetable effect
Hence, it cannot be combined with IFT :)
If you want, there is an extension allowing that

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