iCloud Photo Library has not updated in several months on Mac

Icloud photo on macbook does not change, and in iPhone Icloud photo changes although one account one Icloud on 2 devices, help maybe my macbook was hacked, some strange drum photo does not change for about 2 months, when I change it changes only in iPhone, and macbook Icloud photo does not change, although I changed the password several times, I do not know what to do.

I don't know who put a picture of a drum on the ava of iCloud in macbook, and I don't know who put this picture in iCloud, and it doesn't change, although my iCloud 2 devices, and because of this case I changed the password, but still the problem doesn't go away, I don't know what the reason is.

when I change it changes only on 2 devices, that is in the iPhone, and in the mac aiklaud does not change is a photo of a red drum I do not know who put on the ava drum and it does not change how many times I have not tried to fix it

[Re-Titled by Moderator]