Function lora_value_to_property 

pub fn lora_value_to_property(
    value: LoraValue,
) -> Result<PropertyValue, PropertyConversionError>

Fallible conversion used on every write path (set_property_from_expr, overwrite_entity_target, mutate_entity_target, eval_properties_expr, plus CREATE / MERGE). Rejects VECTOR values nested inside lists at any depth — everything else falls through to the infallible From implementation above. A top-level VECTOR property is always fine; only LISTs that directly contain a VECTOR entry are rejected.