Canon EOS Ra Q&As

I just received my canon ra camera , during my test , i realized that there are many colorful dots on the picture while shooting with lens cap on the lens . it is about the 4 to 5 dots which is noticeable , also there some 4 5 other dots that can not seen easily you need to increase the exposure slider in acr to see them .  I will attach some of them which are noticeable .  is it normal ? or there is something wrong with the sensor ? also pls. note that i do sensor cleaning but they are...