Hello all
I am having the same issue. I have noticed that only appears more frequently at 18mm.
I have some dots that are persistent in many photos but weirdly not in every single one of them (8 of 10 I should say).
If I move the zoom lens to a closer focal length (23-35mm) sometimes the white pixels moves a couples of pixels offset from the previous one at 18mm.
I did the test with the cap on and it seems that they are always present if you increase the exposure in post.
I also have some white pixel even a normal speed and ISO 160 when is poor lit scene.
Best
Luis
