Technically when the vote ended, it ended at a tie, not an outright pass/fail. Fun fact: the South doesn't actually have a rule determining how a tie is broken.
Here's the text:
https://uselectionatlas.org/AFEWIKI/index.php/Standing_Rules_of_the_Southern_Chamber_of_Delegates#Section_VI:_VotinSection VI: Voting
1.) Votes on legislation shall last for a maximum of 2 days (i.e. 48 hours).
2.) When a piece of legislation has enough votes to pass or fail, the office in control of the legislative slot shall announce that he or she will close the vote in 16 hours and that any Delegate who wishes to change his or her vote must do so during that interval. If all delegates have voted, the vote may be closed immediately.
3.) If a piece of legislation is vetoed by the Governor, the bill's sponsor may request an override of the veto within 3 days, i.e. 72 hours, of the veto taking place. The Speaker may extend this period if the bill's sponsor is on a publicly-declared leave of absence.
4.) For the purposes of overriding vetoes, any Delegate who abstains from voting shall be counted as a vote against overriding the veto.
Section VII: Rules Disputes
1.) The Southern Legislature may elect to suspend any section of these rules at any time with the consent of two-thirds of sitting Delegates.
2.) The presiding officer may unilaterally suspend any section of these rules at any time, unless another Delegate objects. If two Delegates object, suspending the rules shall require the consent of a majority of sitting Delegates.
3.) If the Chamber of Delegates cannot resolve a rules dispute, within 168 hours of the start of the dispute, the Supreme Court of The South may issue a binding decision dictating the proper interpretation of these rules, bound by the Constitution.
4.)Any Delegate may enforce the rules of this chamber.
I would suggest Section VII would be the most likely way to resolve it, and would also suggest someone in the Chamber submit a separate bill with an amendment to the standing rules clarifying how ties are broken to avoid this issue in the future.
