Cannot find reason for the slanted hole. All adjustments are set correctly, and everything looks square and normal.

The table angle is probably off. Place the object on the table (preferably clamped in place) and lower the drill bit to the point of contact. Use a small right angle square on the object to check drill bit alignment. Adjust the table accordingly. The measurement indicators on a drill press are for reference only. Trust squares, calipers & common sense.