In contrast to the Segmentation Utilities View, the MultiLabel Segmentation Utilities View does not open error-dialogs if masks with different geometries / dimensions are used for the operations (e.g. Boolean Operations).
However, an error will be printed to the log (e.g. Boolean operation failed: Segmentations have different geometries and cannot be used for boolean operations!).

This should be fixed but only after the Utilities View has been revised. The whole view seems to be redundant and it might make sense to combine it with the classic Segmentation Utilities View.