I had FUE beard transplant of 3300 grafts 8 months ago. I see bumps all over my transplanted region (Photo)

You have scarring that probably is permanent after a beard hair transplant.  This is not normal and you need to follow up with your doctor.

That is probably because of unproper, deeply  implantation of the grafts in to your cheek skin . But some  of he lesions on chin are hyperkeratotic and have scar. so it is better to visit a dermatologist . 

You show pictures of bumps on your beard trransplanted area from 8 months earler. This looks like a problem caused by the surgeon and the placement of your grafts which were not flush with the skin surface