Lastly there was the question of unity of the Germans. The Austrian revolutionaries would welcome the Great German Unity. The problem was, they meant the whole imperial part of the Habsburg empire (which basically was everything sans Hungary), this the Italians and the Czechs especially did not like, not a bit. Anyway the imagined the united Germany will be led by Austria, and they elected the delegates to send to Frankfurt, into the German Reichstag.
Further problem was that the half of the new legislation consisted of Slavs, many of them did not even know German. Changes were enacted slow, the court also played for time. They gave less, especially in the question of voting rights. Then they wanted to abolish the Academic Legion. This led to the second revolution, when the masses pushed back, and tried to put things back on track. This was in May.
During the summer the work of the parliament drags slow, but they abolish robot (free work) and tethe, essentially ending serfdom. The court used this as if they were the ones who wanted to enact this, they were the ones who supported the cause of the serfs. This way they ensured their support.
In September Jelacic was sent to Hungary to take over the reign and restore order, and in October they wanted to redirect troops from Vienna to his camp. This triggered the third revolution, they essentially wanted to help us. There were previous events that build up the tension ofc. Firstly the "agents" of the court worked in the ministries of the new government (most notably Latour and Bach), and due to economic hardships, wages were cut, firing up the dissatisfaction of the labourers.
Essentially that's about it. There must be some details and nuances I'm not aware of.