Any party may preliminarily object to a claim upon a showing of exemption or immunity of the property from lien, or for lack of conformity with this act. The court shall determine all preliminary objections. If an issue of fact is raised in such objections, the court may take evidence by deposition or otherwise. If the filing of an amended claim is allowed, the court shall fix the time within which it shall be filed. Failure to file an objection preliminarily shall not constitute a waiver of the right to raise the same as a defense in subsequent proceedings.
49 P.S. § 1505