Well, my next path investigating would be taking everything apart. Remove the trigger, separate the parts, thoroughly clean, check for any unnatural burrs and such, apply a coating of your favorite lubrication on trigger components and reassemble. Same for the Bolt & Firing Pin assembly. Separate the FP assembly parts: the Spring, Cocking piece & such. Same vigorous cleaning & inspection & reassembly.

Just never know. There could be a edge burr or flashing material on a part causing the noise. And being new, it might simply go away after use. But that would be my next course of action. Though I do. Though I do not know your level of DIW, and recommend caution for those who don’t normally at least tinker with firearms.