I could be wrong, But I believe the Lerp node is the cause of the issue as the alpha is always at 0 and nothings modifying it, this means it won’t liner interpolate from its start location to the new location you want the door to move to as it moves from A to B from inputting a decimal point number between 0 and 1. Another issue could be your collision presets for both objects check that their object types are not set to ignore for one another.
Hope this helps if not I’ll try to create to recreate what you’ve done and show 