This is a Disassociate Trine, which occurs from signs that either square or quincunx each other.

The change in sign position of the sun alters the natural sign relationship of the aspect, since Scorpio and Leo square each other. A disassociate aspect will still express itself according to the angle formed between the planets, but the sign relationship will modify the attitudes and motivations. These types of aspects in the natal chart will have an impact on character, not circumstance.

Dissociate trines involve underlying influences that trigger mental discord and uneasiness, while outwardly enjoying the circumstances that a trine would attract. Normal trines attract an easy-going, positive and pleasurable experiences with little personal struggle. An individual with a dissociate trine has a hard time psychologically accepting the good fortune brought by the trine. They might be internally dissatisfied, which prevents them from accepting their state of harmony.

Since Leo and Scorpio square each other, outer situations operate too smoothly to satisfy the inner drive. The individual may believe their circumstance lack some element of struggle that provides fuel for ambition. Because squares can be self-blocking, the individual may look at ease, but internally are struggling with a subtle sense of anxiety or insecurity, which holds the person back from using all their talents. However, if the person is able to handle their inner critic correctly, the energy of the square could be the kick in the butt the leisurely trine needs to take full advantage of its creative energy.

Source: Dynamics of Aspect Analysis by Bil Tierny