If the vehicle has dual climate control, it will have two different blend door actuators. Are you certain you got the correct one?
If you look at the directions below, they are specific for the replacement of the actuator for the left side (driver's side). Take a look through them and let me know if you got the correct one. If you did, I need you to remove it from the HVAC box and see if it moves when you change from heat to cold.
Here is a link you may find helpful as well:
Let me know what you find,
See pics below.
Images (Click to enlarge)
Thursday, June 10th, 2021 AT 8:46 PM