Different functional connectivity results

Dear all

Hi, 

I'm using DPARSF for 12 subjects. 

Today I found that in one subject, functional connectivity images from all 4 sessions of BOLD resting state fMRI have different image from others. 

Here I attached a screenshot, left one is different from right normal image. 

I did every analysis in same procedure and checked several times. 

It seems like participants moved during measurement, but when I checked a realignment parameter, movement is less than 0.5mm. 

T1 Image of this participant seems that he may move during T1 imaging. 

Is this could be a reason? 

If I measure T1 again, do you think this problem could be solved? 

Thanks 

Bests,

Inseon