I suspect that it doesn't show your grand trine, ebcause, as far as I can discern, that only thing close to a grand trine in your chart would be involving your ASC, and points normally don't make aspect configurations. This is why: asect configs are the combination of the energies of the different bodies that make up the config. Yet points don't emit energy. They influence and recieve energy but they don't emit energy themselves. How your planets aspect your ASC effects your ASC, but it's a very one-way relationship. So in this case you have bodies that comprise a trine between Pisces and Scorpio that each respectively influence your Cancer ASC, but technically this is not a grand trine. A grand trine would need an body on the third corner to make it complete.
People flub this all this time though, as I've seen people claim to have aspect configs involving nodes and parts, as well as angles. So if you wish to consider this a config, there are plenty of others that would support that. However, using points defeats to the idea of an aspect config being a particular collective of bodies and their respective energies.
The only way I could see this as a grand trine is if you have some significant minor body conjunct your ASC: one of the goddess asteriods would be most powerful, or asteriod Lilith (not apogee or Black moon Lilith - whichis a point too) would be pretty significant. One of the Centuars could be an impressive presence if it fell in orb of your ASC, seeing that would be in aspect with the chief Centuar, Chiron. There are other asteriods beyond those, but not many have been researched, and many are debateable whether their astrological presence is worth noting.
Fixed stars are another possiblity, and ones that fall on the ASC are often the most powerful in a chart. Even so, I persoanlly regard fixed stars as too weak to make a strong aspect config, even if on the ASC.
Glad you joined us here, it's a great place to learn and share.
