Weird error when adding dragon shapechange

[MadCat75]

I'm creating an NPC dragon and i get this error when i add a race that the dragon can morph into.........The dragon is a wyrmling (small size), since it can't morph into a smaller or larger than itself, i added 'Halfling' (small size), as its morph, it still pops up this error

Syntax error in dynamic 'candidate' tag expression
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Syntax error in dynamic 'candidate' tag expression
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Syntax error in dynamic 'candidate' tag expression
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Syntax error in dynamic 'candidate' tag expression
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Syntax error in dynamic 'candidate' tag expression
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Syntax error in dynamic 'candidate' tag expression

I went ahead and submitted a bug report just incase