Without being there here are some possiblities.
1. Your entry and exit need to be changed.
2. Just because you watch your scent does not mean you can egnore the wind. If you are upwind no matter what they will smell you.
3. You are hunting to low
in the tree.
4. From the sounds of it you are at the bottom of a ridge and the deer bed up higher. heat rises with scent.
5. Now they know they are being hunted so come to the field at night.
6. Acorns are dropping . They will feed on them and egnore all other food sources.
The list can be very long but I bet it is one or more of the above.
1. Your entry and exit need to be changed.
2. Just because you watch your scent does not mean you can egnore the wind. If you are upwind no matter what they will smell you.
3. You are hunting to low
in the tree.
4. From the sounds of it you are at the bottom of a ridge and the deer bed up higher. heat rises with scent.
5. Now they know they are being hunted so come to the field at night.
6. Acorns are dropping . They will feed on them and egnore all other food sources.
The list can be very long but I bet it is one or more of the above.