They ruled that the video assistant referee (VAR) should have intervened and recommended a goal.
However, one member of the panel highlighted that they did not think there was conclusive evidence that the ball had crossed the line and a VAR intervention should not take place.
Meanwhile, the panel ruled that Ross County should not have been awarded a stoppage-time penalty in their 14 May draw away to Dundee.
Ronan Hale equalised and the result meant the battle between the two sides to avoid second bottom spot and a play-off to remain in the Premiership went to the final day of the season.
Home defender Antonio Portales was penalised for a handball, but the KMI panel decided by a majority of four to one that VAR should have intervened to recommend to referee Walsh that he should cancel the award.
However, one member of the panel highlighted that they thought it was a punishable handball and the penalty award was correct.
Despite the reprieve at Dens Park, County finished second bottom and go into Monday’s second leg at home to Championship runners-up Livingston with the tie level at 1-1.
