From d8ff601be78bc7aa61de60b45e1b0c12d26fb131 Mon Sep 17 00:00:00 2001
From: Sainan <63328889+Sainan@users.noreply.github.com>
Date: Fri, 27 Jun 2025 00:37:00 +0200
Subject: [PATCH] fix: array out of bounds when processing CalendarProgress

---
 src/services/missionInventoryUpdateService.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/services/missionInventoryUpdateService.ts b/src/services/missionInventoryUpdateService.ts
index ec3ee941..c4a62f2c 100644
--- a/src/services/missionInventoryUpdateService.ts
+++ b/src/services/missionInventoryUpdateService.ts
@@ -674,7 +674,7 @@ export const addMissionInventoryUpdates = async (
                 const calendarProgress = getCalendarProgress(inventory);
                 const currentSeason = getWorldState().KnownCalendarSeasons[0];
                 calendarProgress.SeasonProgress.LastCompletedChallengeDayIdx = currentSeason.Days.findIndex(
-                    x => x.events[0].challenge == value[value.length - 1].challenge
+                    day => day.events.length != 0 && day.events[0].challenge == value[value.length - 1].challenge
                 );
                 checkCalendarChallengeCompletion(calendarProgress, currentSeason);
                 break;