Blackmagic Production Camera 4K - Sensor problems

I have two problems whit my new Blackmagic Production Camera 4K bought yesterday.
I think they are sensor problems.
1) Black dots in overexposed area only whit this Settings: 800asa, proreshd, dinamic range video (the problem is ONLY WHIT THIS COMBINATION, black dots don't appear whit other settings)
2) Vertical lines in underexposed area and low light. Settings 800asa, proreshd,dinamic range video
Can you help me please?
Thanks
I think they are sensor problems.
1) Black dots in overexposed area only whit this Settings: 800asa, proreshd, dinamic range video (the problem is ONLY WHIT THIS COMBINATION, black dots don't appear whit other settings)
2) Vertical lines in underexposed area and low light. Settings 800asa, proreshd,dinamic range video
Can you help me please?
Thanks