Finding a few glitches on the 910T3

Switched from Sprint to T-Mobile and had to trade in my Sprint Note 4 for a T-Mobile Note 4. I noticed in the very beginning I would have these glitches with the system (other than the headphone plug in and S-Pen removed always shown on notifications bar). I have noticed some of my apps/folders would change to a black background (was green one time too), then just a few nights ago I turned on my Note 4 listened to music, then turned off the music. Noticed some of the background kept switching between the white background and color. After reformatting the phone 4 times, I have come to the conclusion it is not an app I have downloaded. Has anyone experienced same or similar issues?

Thanks in advance

Sent from my SM-N910T3 using XDA Premium HD app

Attached Thumbnails