Since pre-3.0 Fall of Oriath in 2017, MTX have been reworked by GGG to not be applied to item instances, and thus to my knowledge do not appear in any current or untouched tab API results. Therefore the MTX filter checkbox can be removed from Acquisition's UI, along with internal support for this item property.
Since pre-3.0 Fall of Oriath in 2017, MTX have been reworked by GGG to not be applied to item instances, and thus to my knowledge do not appear in any current or untouched tab API results. Therefore the MTX filter checkbox can be removed from Acquisition's UI, along with internal support for this item property.