diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/MediaActivity.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/MediaActivity.kt
index 052cf2c0b..665e1f94f 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/MediaActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/MediaActivity.kt
@@ -612,6 +612,7 @@ class MediaActivity : SimpleActivity(), MediaOperationsListener {
                 try {
                     gotMedia(newMedia, false)
 
+                    // remove cached files that are no longer valid for whatever reason
                     val newPaths = newMedia.mapNotNull { it as? Medium }.map { it.path }
                     oldMedia.mapNotNull { it as? Medium }.filter { !newPaths.contains(it.path) }.forEach {
                         if (mPath == FAVORITES && getDoesFilePathExist(it.path)) {