From bc7f7e70a1de65f1f966e2e31f97457f8ac16ce6 Mon Sep 17 00:00:00 2001
From: Leodyver Semilla <124951048+leodyversemilla07@users.noreply.github.com>
Date: Wed, 24 Jun 2026 00:44:27 +0800
Subject: [PATCH] Prevent random `FileNotFoundException` when reading chapters
 (#3154)

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>
---
 CHANGELOG.md                                              | 1 +
 .../java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt   | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04e540de1..bf0fa3a28 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,7 @@ The format is a modified version of [Keep a Changelog](https://keepachangelog.co
 ### Fixed
 - Add missing `outlineVariant` color to Nord theme ([@CompileConnected](https://github.com/CompileConnected)) ([#3184](https://github.com/mihonapp/mihon/pull/3184))
 - Continue reading button missing when unread filter is off ([@AntsyLich](https://github.com/AntsyLich)) ([#3382](https://github.com/mihonapp/mihon/pull/3382))
+- Fix random `FileNotFoundException` when reading chapters ([@leodyversemilla07](https://github.com/leodyversemilla07)) ([#3154](https://github.com/mihonapp/mihon/pull/3154))
 
 ## [v0.19.9] - 2026-04-11
 ### Fixed
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt b/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
index 1d47f5b7d..2913b2fdb 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
@@ -113,7 +113,13 @@ class ChapterCache(
      */
     fun isImageInCache(imageUrl: String): Boolean {
         return try {
-            diskCache.get(DiskUtil.hashKeyForDisk(imageUrl)).use { it != null }
+            val key = DiskUtil.hashKeyForDisk(imageUrl)
+            val inJournal = diskCache.get(key).use { it != null }
+            val fileExists = getImageFile(imageUrl).exists()
+            if (inJournal && !fileExists) {
+                logcat(LogPriority.WARN) { "Image is in journal but file is missing: $imageUrl" }
+            }
+            inJournal && fileExists
         } catch (_: IOException) {
             false
         }