Because you have this listed under Idaho, it is much less likely that a California attorney will actually see it. You are more likely to get a California response if you repost this as a California question. My understanding is that normally, a Will is supposed to be filed with the court within 30 days of a person's death under California law.
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Here's the underlying question, who has the supposed newer will? Can you contact that person? If they in fact have a newer will, it should be submitted to probate ASAP. You have asked about a California statute but posted the question under ID. You'll need to clarify what is going on.
You should schedule a meeting with a local probate attorney for an in depth factual review of the scenario and to develop a plan to proceed.
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