Mk, jupiter has a 12 years cycle so it stays in one sign for approximately 1 year Starflower...the reason saggies have been blocked is that all these planets are stacked up in their 12th solar house (a solar house is like an ascendant only with your sun as the cusp of the 1st house)
Having all these planets in your 12th solar greatly weakens the natives fire, but its an important time for introspection and self work before everything goes 1st solar house and the native is "reborn" so to speak.
This is the largest pile up of planets in one sign we will see for a VERY long time, so make sure you look at your chart and see which house this pile up falls in and do a lot of work in this area! Also your solar house as well!
For scorpios now is a time to push forward and be reborn, with all these planets going into the 1st solar house its an important time for establishing a new identity, a new persona, a new way of relating to the world.
Slowly we will see the sagittarians reborn as the transits conj their sun and move into their solar first! Watch the transformation.
Late saggies still have all this in their 12th house, early saggies are already seeing these planets go into their first.
Capricorns, most of you this is going on in ur 11th, so new social relations/socializing has been on the front.
Aquarius 10th house, so extremely hard work, career advancement.
Pisces 9th house, educational expansion, traveling
Aries 8th house, intensity, love/sexual attraction, possible loss..BIG change
Taurus 7th house, partnership issues
Gemini, 6th house, health and workplace issues
Cancer 5th house, romance, creative issues, issues with children or ones children
Leo 4th house, issues with the home/mother, amny leos are moving
Virgo 3rd house, issues with sibling/communication/travel
Libra 2nd house, issues with finance, possessions
Finally scorpio 1st as i touched on before and sag 12th.
Note: depending where you fall in your sign this may be wrong, if you're really early in your sign then read the sign before you.