[GAMEPLAY] Lissandra, Ashe, and Sejuani Quest not working correctly.

During an ARAM match my team had both Sejuani and Ashe. The other team had Lissandra and when the quest appeared our team received the objective for Ashe to defeat both Lissandra and Sejuani. We could not do the second mission and the Ashe defeating Sejuani tooltip remained after we killed Lissandra.