Initial Report: When adding multiple contradictions on the same statement and then saving, the data for all but the last contradiction will not be saved. This was reported by two users and then confirmed by me using a minimal trial. The full reproduction steps are likely more complicated.
Revised Report: When a statement has multiple contradictions, some of the variable references in the contradiction's event functions refer to a different variable at runtime than when the event was defined. For instance, the contradiction index of a destination selector is the index of the last contradiction, and not the contradiction to which the destination selector "belongs." The selector that gets updated is the last selector, even if that isn't the event target. Consequently, every time a contradiction destination is changed, the editor just saves the destination for the last contradiction. Evidence selectors have an identical problem. Similarly, when deleting a contradiction, the last data removed will be for the last contradiction.