We recently implemented Enterprise Territory Management in our organization. I have used the "OppTerrAssignDefaultLogicFilter" apex class to display the territory name in the opportunities. When the button "Run Opportunity Filter" is clicked, the apex class populates the territory name on the  opportunities . I am observing the following issues  with the Apex class:

- Even though the account has only single territory with the maximum priority, the associated opportunity doesn't get the territory assigned
-Under the same account one opportunity gets territory assigned whereas the other opportunity doesn't get territory assigned
- I have even tried to run this class for small group of records. Still not all the records get the territory assigned.

Note: We have only one Territory model active

We recently implemented Enterprise Territory Management in our organization. I have used the "OppTerrAssignDefaultLogicFilter" apex class to display the territory name in the opportunities. When the button "Run Opportunity Filter" is clicked, the apex class populates the territory name on the  opportunities . I am observing the following issues  with the Apex class:

- Even though the account has only single territory with the maximum priority, the associated opportunity doesn't get the territory assigned
-Under the same account one opportunity gets territory assigned whereas the other opportunity doesn't get territory assigned
- I have even tried to run this class for small group of records. Still not all the records get the territory assigned.

Note: We have only one Territory model active