Are training missions bugged, or I'm doing something wrong?

https://imgur.com/a/yCcIvXb

When trying to finish the final landing mission, the aircraft seems to be too far from the destination. Because throttle is disabled, I can't reach the landing, no matter how I try.

In previous missions where the instructor help to control some parameters, the landing seems to be significantly closer.

https://imgur.com/a/WqhPjBF