PLEASE HELP!! TI89 Not integrating Properly?

My Ti89 is not integrating right. I put in the integral of 2 * t with respect to “t” and the answer should be t^2 but I get “1”. Again, I put in the integral of t+1 in respect to “t” and the answer should be 1/2t^2+t but I get “1” again.
Is there something I need to change in settings? I didn’t have this problem before. Right now the mode is in Radians and is on auto for exact/approximate.

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