Hey Martin, thank you for all the help! I appreciate your patience a lot!

So I divided the raw NIFTI by 10 and converted it to short, as you instructed. Did the conversion to NRRD and back to NIFTI without any preprocessing. Ran FSL eddy and still get funky restricted_movement_rms output:

0 0
0.2038525508 0.2038525508
0.2966385594 0.1289960832
0.1769648149 0.1353480775
0.2093033512 0.04258349482
0.1773506161 0.07180787622
0.4360092816 0.2773610629
0.6433636054 0.2146519237
0.7557379137 0.2671309679
0.9438142919 0.2064356003
0.2655247508 0.718929466
0.2655247508 0
0.2655247508 0
0.265382307 0.02058829451
0.1863159236 0.1653923633
0.2176241255 0.07100286362
0.1928490649 0.04373855596
0.2655247508 0.1501076218
0.2141449818 0.1186811482
0.216806364 0.05683636863
0.225604777 0.1054652953
0.1759822132 0.1186303828
0.335097248 0.1770273245
0.1854769045 0.2700244462
0.1804167972 0.09800466894
0.1933196696 0.04450558272
0.190211893 0.08558773421
0.229563502 0.1136821019
0.2355598626 0.04767706248
0.2273612482 0.0650830617
0.1970970425 0.06067492451
0.2442049681 0.09359118973
0.2205755626 0.05380801303


Not sure where to go from here.. Would you recommend that I solicit help over at the Slicer forum?

Thank you!