diff --git a/src/en/aniwave/build.gradle b/src/en/aniwave/build.gradle
index b8c8a58ea..19b58d104 100644
--- a/src/en/aniwave/build.gradle
+++ b/src/en/aniwave/build.gradle
@@ -8,7 +8,7 @@ ext {
     extName = 'Aniwave'
     pkgNameSuffix = 'en.nineanime'
     extClass = '.Aniwave'
-    extVersionCode = 55
+    extVersionCode = 56
     libVersion = '13'
 }
 
diff --git a/src/en/aniwave/src/eu/kanade/tachiyomi/animeextension/en/nineanime/Aniwave.kt b/src/en/aniwave/src/eu/kanade/tachiyomi/animeextension/en/nineanime/Aniwave.kt
index 02e578681..badfa2ce2 100644
--- a/src/en/aniwave/src/eu/kanade/tachiyomi/animeextension/en/nineanime/Aniwave.kt
+++ b/src/en/aniwave/src/eu/kanade/tachiyomi/animeextension/en/nineanime/Aniwave.kt
@@ -63,6 +63,8 @@ class Aniwave : ConfigurableAnimeSource, ParsedAnimeHttpSource() {
         add("Referer", "$baseUrl/")
     }.build()
 
+    private val markFiller by lazy { preferences.getBoolean(PREF_MARK_FILLERS_KEY, PREF_MARK_FILLERS_DEFAULT) }
+
     // ============================== Popular ===============================
 
     override fun popularAnimeRequest(page: Int): Request = GET("$baseUrl/filter?sort=trending&page=$page", refererHeaders)
@@ -177,7 +179,7 @@ class Aniwave : ConfigurableAnimeSource, ParsedAnimeHttpSource() {
         val dub = if (element.attr("data-dub").toInt().toBoolean()) "Dub" else ""
         val softSub = if (SOFTSUB_REGEX.find(title) != null) "SoftSub" else ""
 
-        val extraInfo = if (element.hasClass("filler") && preferences.getBoolean(PREF_MARK_FILLERS_KEY, PREF_MARK_FILLERS_DEFAULT)) {
+        val extraInfo = if (element.hasClass("filler") && markFiller) {
             " • Filler Episode"
         } else {
             ""
@@ -226,7 +228,7 @@ class Aniwave : ConfigurableAnimeSource, ParsedAnimeHttpSource() {
         val hosterSelection = preferences.getStringSet(PREF_HOSTER_KEY, PREF_HOSTER_DEFAULT)!!
         val typeSelection = preferences.getStringSet(PREF_TYPE_TOGGLE_KEY, PREF_TYPES_TOGGLE_DEFAULT)!!
 
-        return document.select("div.servers > div").parallelMap { elem ->
+        return document.select("div.servers > div").parallelFlatMap { elem ->
             val type = elem.attr("data-type").replaceFirstChar { it.uppercase() }
             elem.select("li").mapNotNull { serverElement ->
                 val serverId = serverElement.attr("data-link-id")
@@ -237,9 +239,7 @@ class Aniwave : ConfigurableAnimeSource, ParsedAnimeHttpSource() {
                 VideoData(type, serverId, serverName)
             }
         }
-            .flatten()
-            .parallelMap { extractVideo(it, epurl) }
-            .flatten()
+            .parallelFlatMap { extractVideo(it, epurl) }
             .ifEmpty { throw Exception("Failed to fetch videos") }
     }
 
@@ -275,7 +275,7 @@ class Aniwave : ConfigurableAnimeSource, ParsedAnimeHttpSource() {
             val embedLink = utils.callEnimax(parsed.result.url, "decrypt")
             when (server.serverName) {
                 "vidplay", "mycloud" -> vidsrcExtractor.videosFromUrl(embedLink, server.serverName, server.type)
-                "filemoon" -> filemoonExtractor.videosFromUrl(embedLink, "Filemoon - ${server.type}")
+                "filemoon" -> filemoonExtractor.videosFromUrl(embedLink, "Filemoon - ${server.type} - ")
                 "streamtape" -> streamtapeExtractor.videoFromUrl(embedLink, "StreamTape - ${server.type}")?.let(::listOf) ?: emptyList()
                 "mp4upload" -> mp4uploadExtractor.videosFromUrl(embedLink, headers, suffix = " - ${server.type}")
                 else -> emptyList()
@@ -295,9 +295,9 @@ class Aniwave : ConfigurableAnimeSource, ParsedAnimeHttpSource() {
         val server = preferences.getString(PREF_SERVER_KEY, PREF_SERVER_DEFAULT)!!
 
         return this.sortedWith(
-            compareByDescending<Video> { it.quality.contains(quality) }
-                .thenByDescending { it.quality.contains(server, true) }
-                .thenByDescending { it.quality.contains(lang) },
+            compareByDescending<Video> { it.quality.contains(lang) }
+                .thenByDescending { it.quality.contains(quality) }
+                .thenByDescending { it.quality.contains(server, true) },
         )
     }
 
@@ -319,6 +319,11 @@ class Aniwave : ConfigurableAnimeSource, ParsedAnimeHttpSource() {
         map { async(Dispatchers.Default) { f(it) } }.awaitAll()
     }
 
+    inline fun <A, B> Iterable<A>.parallelFlatMap(crossinline f: suspend (A) -> Iterable<B>): List<B> =
+        runBlocking {
+            map { async(Dispatchers.Default) { f(it) } }.awaitAll().flatten()
+        }
+
     private inline fun <reified T> Response.parseAs(): T {
         val responseBody = use { it.body.string() }
         return json.decodeFromString(responseBody)
@@ -442,6 +447,7 @@ class Aniwave : ConfigurableAnimeSource, ParsedAnimeHttpSource() {
             title = "Mark filler episodes"
             setDefaultValue(PREF_MARK_FILLERS_DEFAULT)
             setOnPreferenceChangeListener { _, newValue ->
+                Toast.makeText(screen.context, "Restart Aniyomi to apply new setting.", Toast.LENGTH_LONG).show()
                 preferences.edit().putBoolean(key, newValue as Boolean).commit()
             }
         }.also(screen::addPreference)
diff --git a/src/en/aniwave/src/eu/kanade/tachiyomi/animeextension/en/nineanime/AniwaveUtils.kt b/src/en/aniwave/src/eu/kanade/tachiyomi/animeextension/en/nineanime/AniwaveUtils.kt
index 5e022d66f..6611a107f 100644
--- a/src/en/aniwave/src/eu/kanade/tachiyomi/animeextension/en/nineanime/AniwaveUtils.kt
+++ b/src/en/aniwave/src/eu/kanade/tachiyomi/animeextension/en/nineanime/AniwaveUtils.kt
@@ -1,5 +1,6 @@
 package eu.kanade.tachiyomi.animeextension.en.nineanime
 
+import eu.kanade.tachiyomi.AppInfo
 import eu.kanade.tachiyomi.network.GET
 import eu.kanade.tachiyomi.network.POST
 import kotlinx.serialization.json.Json
@@ -13,6 +14,11 @@ class AniwaveUtils(private val client: OkHttpClient, private val headers: Header
 
     val json: Json by injectLazy()
 
+    private val userAgent = Headers.headersOf(
+        "User-Agent",
+        "Aniyomi/${AppInfo.getVersionName()} (AniWave)",
+    )
+
     fun callEnimax(query: String, action: String): String {
         return if (action in listOf("rawVizcloud", "rawMcloud")) {
             val referer = if (action == "rawVizcloud") "https://vidstream.pro/" else "https://mcloud.to/"
@@ -27,11 +33,12 @@ class AniwaveUtils(private val client: OkHttpClient, private val headers: Header
                 POST(
                     url = "https://9anime.eltik.net/$action?apikey=aniyomi",
                     body = formBody,
+                    headers = userAgent,
                 ),
             ).execute().parseAs<RawResponse>().rawURL
         } else {
             client.newCall(
-                GET("https://9anime.eltik.net/$action?query=$query&apikey=aniyomi"),
+                GET("https://9anime.eltik.net/$action?query=$query&apikey=aniyomi", userAgent),
             ).execute().use {
                 val body = it.body.string()
                 when (action) {
diff --git a/src/en/fmovies/build.gradle b/src/en/fmovies/build.gradle
index eba0ca47a..ad33faf07 100644
--- a/src/en/fmovies/build.gradle
+++ b/src/en/fmovies/build.gradle
@@ -8,7 +8,7 @@ ext {
     extName = 'FMovies'
     pkgNameSuffix = 'en.fmovies'
     extClass = '.FMovies'
-    extVersionCode = 12
+    extVersionCode = 13
     libVersion = '13'
 }
 
diff --git a/src/en/fmovies/src/eu/kanade/tachiyomi/animeextension/en/fmovies/FMoviesHelper.kt b/src/en/fmovies/src/eu/kanade/tachiyomi/animeextension/en/fmovies/FMoviesHelper.kt
index f0e0b045a..d06b832ff 100644
--- a/src/en/fmovies/src/eu/kanade/tachiyomi/animeextension/en/fmovies/FMoviesHelper.kt
+++ b/src/en/fmovies/src/eu/kanade/tachiyomi/animeextension/en/fmovies/FMoviesHelper.kt
@@ -1,5 +1,6 @@
 package eu.kanade.tachiyomi.animeextension.en.fmovies
 
+import eu.kanade.tachiyomi.AppInfo
 import eu.kanade.tachiyomi.network.GET
 import eu.kanade.tachiyomi.network.POST
 import kotlinx.serialization.json.Json
@@ -15,6 +16,11 @@ class FMoviesHelper(private val client: OkHttpClient, private val headers: Heade
 
     private val json: Json by injectLazy()
 
+    private val userAgent = Headers.headersOf(
+        "User-Agent",
+        "Aniyomi/${AppInfo.getVersionName()} (FMovies)",
+    )
+
     fun getVrf(id: String): String {
         val url = API_URL.newBuilder().apply {
             addPathSegment("fmovies-vrf")
@@ -22,7 +28,7 @@ class FMoviesHelper(private val client: OkHttpClient, private val headers: Heade
             addQueryParameter("apikey", API_KEY)
         }.build().toString()
 
-        return client.newCall(GET(url)).execute().parseAs<VrfResponse>().let {
+        return client.newCall(GET(url, userAgent)).execute().parseAs<VrfResponse>().let {
             URLEncoder.encode(it.url, "utf-8")
         }
     }
@@ -34,7 +40,7 @@ class FMoviesHelper(private val client: OkHttpClient, private val headers: Heade
             addQueryParameter("apikey", API_KEY)
         }.build().toString()
 
-        return client.newCall(GET(url)).execute().parseAs<VrfResponse>().url
+        return client.newCall(GET(url, userAgent)).execute().parseAs<VrfResponse>().url
     }
 
     fun getVidSrc(query: String, host: String): String {
@@ -53,7 +59,7 @@ class FMoviesHelper(private val client: OkHttpClient, private val headers: Heade
         }.build()
 
         return client.newCall(
-            POST(url, body = body),
+            POST(url, body = body, headers = userAgent),
         ).execute().parseAs<RawResponse>().rawURL
     }