One of the important features of the month of Shabaan is the Qibla change, which occurred on the 15th of Shabaan. Before this, Muslims used to pray facing Al-Aqsa Mosque, then Allah the Almighty changed their prayers direction (Qibla) to Kabaah.
While he was in Makkah, Prophet Muhammad (SAW) used to pray in a position towards the Kabaah facing Aqsa. But that could no longer be possible once he arrived in Madina, after Hijrah. This used to upset Prophet Muhammad (peace and blessings be upon him), but he never complained to Allah.
Find out here why the Qibla was changed.