From 5566db160bdc207237d9e30f9a715935be216f4e Mon Sep 17 00:00:00 2001
From: NGB-Was-Taken <76197326+NGB-Was-Taken@users.noreply.github.com>
Date: Fri, 12 Dec 2025 00:41:57 +0545
Subject: [PATCH] fix deletion of duplicate downloaded chapters when
 automatically marked as read (#1500)

---
 .../eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt     | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt
index 9f1ac8614..6008118b2 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt
@@ -767,14 +767,17 @@ class ReaderViewModel @JvmOverloads constructor(
                     chapter.chapterNumber.toFloat() == readerChapter.chapter.chapter_number
                 ) {
                     ChapterUpdate(id = chapter.id, read = true)
-                        // SY -->
-                        .also { deleteChapterIfNeeded(ReaderChapter(chapter)) }
-                    // SY <--
                 } else {
                     null
                 }
             }
         updateChapter.awaitAll(duplicateUnreadChapters)
+        // SY -->
+        duplicateUnreadChapters.forEach { chapterUpdate ->
+            val chapter = unfilteredChapterList.first { it.id == chapterUpdate.id }
+            deleteChapterIfNeeded(ReaderChapter(chapter))
+        }
+        // SY <--
     }
 
     fun restartReadTimer() {