What are the consequences of not performing Shradh on Panchami for an ancestor who died on this tithi?

According to the Garuda Purana, ancestors who do not receive Shradh on their designated tithi remain hungry and unsatisfied in Pitru Loka. This is said to create Pitru Dosha in the family — which can manifest as repeated obstacles in marriage, career, and health across generations. The prescribed remedy is to perform the missed Shradh at the earliest opportunity, ideally on Sarva Pitru Amavasya.