I am living in Oman where majority of people are belong to the Ibadi sect of Muslim. My Question is: is it OK to pray Namaz behind Ibadi imam or I pray my own individual Namaz?
بسم الله الرحمن الرحيم
The Ibadi sect which exists in Oman Sultanate is a branch of Khawarij sect which is out of the fold of Islam. Salah behind the imam of this belief is invalid. (Ahsanul Fatawa 1:198) So, you should perform salah individually.
Allah knows Best!
Darul Uloom Deoband