It shouldn't be a fault. It may be that the processing/control of moire generated by the photoreceptor is not perfect, so when shooting a textured subject, the result is obvious, which can only be avoided as much as possible during shooting or post-processing.

There is a function in the beauty camera called beauty. When taking selfies, you can automatically paint your eyebrows and lips black and red with beauty makeup, and there are many kinds of makeup to choose from.