[Freesurfer] Different significant regions with different cluster wise thresholds

Dear Freesurfer Mailing list,

While running a glm anlaysis with monte carlo correction (using cluster wise thresholds of .05 & .01), I encountered the following issue: When examining the clusters formed for each of the different cluster wise thresholds, the .05 threshold resulted in a superior temporal cluster, while the .01 threshold resulted in a two lateral occipital clusters that did not overlap with the cluster from the .05 threshold.

Do you know why there would be no overlap between significant regions at different cluster wise thresholds? I was aware that a cluster which is significant at .05 may split or be smaller at .01, but I do not know why entirely different regions would be significant.