diff --git a/server/objects/Audiobook.js b/server/objects/Audiobook.js
index e24aedd2..1cbe8cda 100644
--- a/server/objects/Audiobook.js
+++ b/server/objects/Audiobook.js
@@ -546,10 +546,11 @@ class Audiobook {
     var currOtherFileNum = this.otherFiles.length
 
     var otherFilenamesAlreadyInBook = this.otherFiles.map(ofile => ofile.filename)
-    var alreadyHasAbsMetadata = otherFilenamesAlreadyInBook.includes('metadata.abs')
     var alreadyHasDescTxt = otherFilenamesAlreadyInBook.includes('desc.txt')
     var alreadyHasReaderTxt = otherFilenamesAlreadyInBook.includes('reader.txt')
 
+    var existingAbMetadata = this.otherFiles.find(file => file.filename === 'metadata.abs')
+
     // Filter out other files no longer in directory
     var newOtherFilePaths = newOtherFiles.map(f => f.path)
     this.otherFiles = this.otherFiles.filter(f => newOtherFilePaths.includes(f.path))
@@ -580,9 +581,14 @@ class Audiobook {
     }
 
 
-    // If metadata.abs is new then read it and set all defined keys (will overwrite)
+    // If metadata.abs is new OR modified then read it and set all defined keys (will overwrite)
     var metadataAbs = newOtherFiles.find(file => file.filename === 'metadata.abs')
-    if (metadataAbs && !alreadyHasAbsMetadata) {
+    var shouldUpdateAbs = !!metadataAbs && (metadataAbs.modified || !existingAbMetadata)
+    if (metadataAbs && metadataAbs.modified) {
+      Logger.debug(`[Audiobook] metadata.abs file was modified for "${this.title}"`)
+    }
+
+    if (shouldUpdateAbs) {
       var abmetadataText = await readTextFile(metadataAbs.fullPath)
       if (abmetadataText) {
         var metadataUpdateObject = abmetadataGenerator.parse(abmetadataText)
@@ -933,6 +939,12 @@ class Audiobook {
     var keysToCheck = ['filename', 'ext', 'mtimeMs', 'ctimeMs', 'birthtimeMs', 'size']
     keysToCheck.forEach((key) => {
       if (existingFile[key] !== fileFound[key]) {
+
+        // Add modified flag on file data object if exists and was changed
+        if (key === 'mtimeMs' && existingFile[key]) {
+          fileFound.modified = true
+        }
+
         existingFile[key] = fileFound[key]
         hasUpdated = true
       }
diff --git a/server/scanner/Scanner.js b/server/scanner/Scanner.js
index 2bc31ff8..b1ebd556 100644
--- a/server/scanner/Scanner.js
+++ b/server/scanner/Scanner.js
@@ -85,7 +85,7 @@ class Scanner {
 
     // Sync other files first so that local images are used as cover art
     // TODO: Cleanup other file sync
-    var allOtherFiles = checkRes.newOtherFileData.concat(audiobook._otherFiles)
+    var allOtherFiles = checkRes.newOtherFileData.concat(checkRes.existingOtherFileData)
     if (await audiobook.syncOtherFiles(allOtherFiles, this.db.serverSettings.scannerPreferOpfMetadata)) {
       hasUpdated = true
     }
diff --git a/server/utils/abmetadataGenerator.js b/server/utils/abmetadataGenerator.js
index b8c9f677..914461b2 100644
--- a/server/utils/abmetadataGenerator.js
+++ b/server/utils/abmetadataGenerator.js
@@ -39,7 +39,7 @@ function generate(audiobook, outputPath) {
   }
 
   return fs.writeFile(outputPath, fileString).then(() => {
-    return filePerms(outputPath, 0o774, global.Uid, global.Gid).then(() => true)
+    return filePerms(outputPath, 0o774, global.Uid, global.Gid, true).then((data) => true)
   }).catch((error) => {
     Logger.error(`[absMetaFileGenerator] Failed to save abs file`, error)
     return false
diff --git a/server/utils/filePerms.js b/server/utils/filePerms.js
index 4b64851a..962a08cf 100644
--- a/server/utils/filePerms.js
+++ b/server/utils/filePerms.js
@@ -50,7 +50,7 @@ const chmodr = (p, mode, uid, gid, cb) => {
     // any error other than ENOTDIR means it's not readable, or
     // doesn't exist.  give up.
     if (er && er.code !== 'ENOTDIR') return cb(er)
-    if (er) {
+    if (er) { // Is a file
       return fs.chmod(p, mode).then(() => {
         fs.chown(p, uid, gid, cb)
       })
@@ -77,9 +77,9 @@ const chmodr = (p, mode, uid, gid, cb) => {
   })
 }
 
-module.exports = (path, mode, uid, gid) => {
+module.exports = (path, mode, uid, gid, silent = false) => {
   return new Promise((resolve) => {
-    Logger.debug(`[FilePerms] Setting permission "${mode}" for uid ${uid} and gid ${gid} | "${path}"`)
+    if (!silent) Logger.debug(`[FilePerms] Setting permission "${mode}" for uid ${uid} and gid ${gid} | "${path}"`)
     chmodr(path, mode, uid, gid, resolve)
   })
 }
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