From 2b2b973b308f6a8a7ceb46215aa2330e50bbe42a Mon Sep 17 00:00:00 2001
From: Michael Peleshenko <mpeleshenko@gmail.com>
Date: Mon, 9 Jun 2025 20:15:36 -0400
Subject: [PATCH] Fixed: Prevent series without IMDB ID from being removed
 erroneously

---
 src/NzbDrone.Core/ImportLists/ImportListSyncService.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/NzbDrone.Core/ImportLists/ImportListSyncService.cs b/src/NzbDrone.Core/ImportLists/ImportListSyncService.cs
index 489b4a7bc..d38f7af9e 100644
--- a/src/NzbDrone.Core/ImportLists/ImportListSyncService.cs
+++ b/src/NzbDrone.Core/ImportLists/ImportListSyncService.cs
@@ -305,7 +305,7 @@ namespace NzbDrone.Core.ImportLists
             {
                 var seriesExists = allListItems.Where(l =>
                     l.TvdbId == series.TvdbId ||
-                    l.ImdbId == series.ImdbId ||
+                    (l.ImdbId.IsNotNullOrWhiteSpace() && series.ImdbId.IsNotNullOrWhiteSpace() && l.ImdbId == series.ImdbId) ||
                     l.TmdbId == series.TmdbId ||
                     series.MalIds.Contains(l.MalId) ||
                     series.AniListIds.Contains(l.AniListId)).ToList();