diff --git a/Sora/Utlis & Misc/Extensions/JavaScriptCore+Extensions.swift b/Sora/Utlis & Misc/Extensions/JavaScriptCore+Extensions.swift
index 5297aee..be38576 100644
--- a/Sora/Utlis & Misc/Extensions/JavaScriptCore+Extensions.swift	
+++ b/Sora/Utlis & Misc/Extensions/JavaScriptCore+Extensions.swift	
@@ -195,12 +195,20 @@ extension JSContext {
                 
                 let callReject: (String) -> Void = { message in
                     DispatchQueue.main.async {
-                        reject.call(withArguments: [message])
+                        if !reject.isUndefined {
+                            reject.call(withArguments: [message])
+                        } else {
+                            Logger.shared.log("Reject callback is undefined", type: "Error")
+                        }
                     }
                 }
                 let callResolve: ([String: Any]) -> Void = { dict in
                     DispatchQueue.main.async {
-                        resolve.call(withArguments: [dict])
+                        if !resolve.isUndefined {
+                            resolve.call(withArguments: [dict])
+                        } else {
+                            Logger.shared.log("Resolve callback is undefined", type: "Error")
+                        }
                     }
                 }
                 
diff --git a/Sora/Utlis & Misc/JSLoader/JSController-Details.swift b/Sora/Utlis & Misc/JSLoader/JSController-Details.swift
index ea2b8ae..da828f4 100644
--- a/Sora/Utlis & Misc/JSLoader/JSController-Details.swift	
+++ b/Sora/Utlis & Misc/JSLoader/JSController-Details.swift	
@@ -100,8 +100,12 @@ extension JSController {
         guard let promiseDetails = promiseValueDetails else {
             Logger.shared.log("extractDetails did not return a Promise", type: "Error")
             detailsGroupQueue.sync {
-                guard !hasLeftDetailsGroup else { return }
+                guard !hasLeftDetailsGroup else { 
+                    Logger.shared.log("extractDetails: guard block called but group already left", type: "Debug")
+                    return 
+                }
                 hasLeftDetailsGroup = true
+                Logger.shared.log("Leaving dispatch group due to nil promise (details)", type: "Debug")
                 dispatchGroup.leave()
             }
             completion([], [])
@@ -136,6 +140,7 @@ extension JSController {
                 } else {
                     Logger.shared.log("Result is not a string of extractDetails", type: "Error")
                 }
+                Logger.shared.log("Leaving dispatch group from details thenBlock", type: "Debug")
                 dispatchGroup.leave()
             }
         }
@@ -149,6 +154,7 @@ extension JSController {
                 hasLeftDetailsGroup = true
                 
                 Logger.shared.log("Promise rejected of extractDetails: \(String(describing: error.toString()))", type: "Error")
+                Logger.shared.log("Leaving dispatch group from details catchBlock", type: "Debug")
                 dispatchGroup.leave()
             }
         }
@@ -173,6 +179,7 @@ extension JSController {
                     return
                 }
                 hasLeftEpisodesGroup = true
+                Logger.shared.log("Leaving dispatch group due to timeout", type: "Debug")
                 dispatchGroup.leave()
             }
         }
@@ -182,8 +189,12 @@ extension JSController {
             Logger.shared.log("extractEpisodes did not return a Promise", type: "Error")
             timeoutWorkItem.cancel()
             episodesGroupQueue.sync {
-                guard !hasLeftEpisodesGroup else { return }
+                guard !hasLeftEpisodesGroup else { 
+                    Logger.shared.log("extractEpisodes: guard block called but group already left", type: "Debug")
+                    return 
+                }
                 hasLeftEpisodesGroup = true
+                Logger.shared.log("Leaving dispatch group due to nil promise", type: "Debug")
                 dispatchGroup.leave()
             }
             completion([], [])
@@ -220,6 +231,7 @@ extension JSController {
                 } else {
                     Logger.shared.log("Result is not a string of extractEpisodes", type: "Error")
                 }
+                Logger.shared.log("Leaving dispatch group from thenBlock", type: "Debug")
                 dispatchGroup.leave()
             }
         }
@@ -234,6 +246,7 @@ extension JSController {
                 hasLeftEpisodesGroup = true
                 
                 Logger.shared.log("Promise rejected of extractEpisodes: \(String(describing: error.toString()))", type: "Error")
+                Logger.shared.log("Leaving dispatch group from catchBlock", type: "Debug")
                 dispatchGroup.leave()
             }
         }
diff --git a/Sora/Views/SettingsView/SettingsSubViews/SettingsViewPlayer.swift b/Sora/Views/SettingsView/SettingsSubViews/SettingsViewPlayer.swift
index 99d81e5..250900c 100644
--- a/Sora/Views/SettingsView/SettingsSubViews/SettingsViewPlayer.swift
+++ b/Sora/Views/SettingsView/SettingsSubViews/SettingsViewPlayer.swift
@@ -305,10 +305,10 @@ struct SettingsViewPlayer: View {
                 }
                 
                 SettingsSection(title: NSLocalizedString("Progress bar Marker Color", comment: "")) {
-                    ColorPicker(NSLocalizedString("Segments Color", comment: ""), selection: Binding(
+                    ColorPicker(NSLocalizedString("Segments Color", comment: ""), selection: Binding<Color>(
                         get: {
                             if let data = UserDefaults.standard.data(forKey: "segmentsColorData"),
-                               let uiColor = try? NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(data) as? UIColor {
+                               let uiColor = try? NSKeyedUnarchiver.unarchivedObject(ofClass: UIColor.self, from: data) {
                                 return Color(uiColor)
                             }
                             return .yellow
@@ -322,7 +322,7 @@ struct SettingsViewPlayer: View {
                                 UserDefaults.standard.set(data, forKey: "segmentsColorData")
                             }
                         }
-                    ))
+                    ), supportsOpacity: false)
                     .padding(.horizontal, 16)
                     .padding(.vertical, 12)
                 }