diff --git a/SensorsAnalyticsSDK.podspec b/SensorsAnalyticsSDK.podspec
index 24343c2c..38542e1e 100644
--- a/SensorsAnalyticsSDK.podspec
+++ b/SensorsAnalyticsSDK.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "SensorsAnalyticsSDK"
-  s.version      = "4.5.21"
+  s.version      = "4.5.22"
   s.summary      = "The official iOS SDK of Sensors Analytics."
   s.homepage     = "http://www.sensorsdata.cn"
   s.source       = { :git => 'https://github.com/sensorsdata/sa-sdk-ios.git', :tag => "v#{s.version}" }
diff --git a/SensorsAnalyticsSDK/Core/Builder/EventObject/SABaseEventObject.m b/SensorsAnalyticsSDK/Core/Builder/EventObject/SABaseEventObject.m
index df88077e..a1265daf 100644
--- a/SensorsAnalyticsSDK/Core/Builder/EventObject/SABaseEventObject.m
+++ b/SensorsAnalyticsSDK/Core/Builder/EventObject/SABaseEventObject.m
@@ -51,7 +51,6 @@ - (instancetype)initWithH5Event:(NSDictionary *)event {
         NSString *type = event[kSAEventType];
         _type = [SABaseEventObject eventTypeWithType:type];
         _lib = [[SAEventLibObject alloc] initWithH5Lib:event[kSAEventLib]];
-        _time = [[NSDate date] timeIntervalSince1970] * 1000;
         _trackId = @(arc4random());
         _currentSystemUpTime = NSProcessInfo.processInfo.systemUptime * 1000;
 
@@ -59,6 +58,12 @@ - (instancetype)initWithH5Event:(NSDictionary *)event {
 
         _hybridH5 = YES;
 
+        // 优先使用 web 端时间，防止历史事件时间被改错
+        if ([event[kSAEventTime] isKindOfClass:NSNumber.class]) {
+            _time = [event[kSAEventTime] unsignedLongLongValue];
+        } else {
+            _time = [[NSDate date] timeIntervalSince1970] * 1000;
+        }
         _eventId = event[kSAEventName];
         _loginId = event[kSAEventLoginId];
         _anonymousId = event[kSAEventAnonymousId];
@@ -72,21 +77,18 @@ - (instancetype)initWithH5Event:(NSDictionary *)event {
         _token = properties[kSAEventToken];
 
         id timeNumber = properties[kSAEventCommonOptionalPropertyTime];
-        if (timeNumber) {     //包含 $time
-            NSNumber *customTime = nil;
-            if ([timeNumber isKindOfClass:[NSDate class]]) {
-                customTime = @([(NSDate *)timeNumber timeIntervalSince1970] * 1000);
-            } else if ([timeNumber isKindOfClass:[NSNumber class]]) {
-                customTime = timeNumber;
-            }
+        // $time 类型合法
+        if ([timeNumber isKindOfClass:[NSNumber class]]) {
+            NSNumber *customTime = timeNumber;
 
-            if (!customTime) {
-                SALogError(@"H5 $time '%@' invalid，Please check the value", timeNumber);
-            } else if ([customTime compare:@(kSAEventCommonOptionalPropertyTimeInt)] == NSOrderedAscending) {
+            if ([customTime compare:@(kSAEventCommonOptionalPropertyTimeInt)] == NSOrderedAscending) {
                 SALogError(@"H5 $time error %@，Please check the value", timeNumber);
             } else {
                 _time = [customTime unsignedLongLongValue];
             }
+        } else if (timeNumber) {
+            // $time 类型不合法
+            SALogError(@"H5 $time '%@' invalid，Please check the value", timeNumber);
         }
 
         [properties removeObjectsForKeys:@[@"_nocache", @"server_url", kSAAppVisualProperties, kSAEventProject, kSAEventToken, kSAEventCommonOptionalPropertyTime]];
diff --git a/SensorsAnalyticsSDK/Core/Interceptor/EventBuild/SAPropertyInterceptor.m b/SensorsAnalyticsSDK/Core/Interceptor/EventBuild/SAPropertyInterceptor.m
index 6851d495..69c560af 100644
--- a/SensorsAnalyticsSDK/Core/Interceptor/EventBuild/SAPropertyInterceptor.m
+++ b/SensorsAnalyticsSDK/Core/Interceptor/EventBuild/SAPropertyInterceptor.m
@@ -59,8 +59,8 @@ - (void)processWithInput:(SAFlowData *)input completion:(SAFlowDataCompletion)co
     object.token = (NSString *)properties[kSAEventCommonOptionalPropertyToken];
     id originalTime = properties[kSAEventCommonOptionalPropertyTime];
 
-    // App 内嵌 H5 自定义 time 在初始化中单独处理
-    if ([originalTime isKindOfClass:NSDate.class] && !object.hybridH5) {
+    // 如果公共属性设置 $time, H5 事件也需要修改
+    if ([originalTime isKindOfClass:NSDate.class]) {
         NSDate *customTime = (NSDate *)originalTime;
         int64_t customTimeInt = [customTime timeIntervalSince1970] * 1000;
         if (customTimeInt >= kSAEventCommonOptionalPropertyTimeInt) {
@@ -68,7 +68,7 @@ - (void)processWithInput:(SAFlowData *)input completion:(SAFlowDataCompletion)co
         } else {
             SALogError(@"$time error %lld, Please check the value", customTimeInt);
         }
-    } else if (originalTime && !object.hybridH5) {
+    } else if (originalTime) {
         SALogError(@"$time '%@' invalid, Please check the value", originalTime);
     }
 
diff --git a/SensorsAnalyticsSDK/Core/SALogger/SAConsoleLogger.m b/SensorsAnalyticsSDK/Core/SALogger/SAConsoleLogger.m
index 0e541595..7bd33eb3 100644
--- a/SensorsAnalyticsSDK/Core/SALogger/SAConsoleLogger.m
+++ b/SensorsAnalyticsSDK/Core/SALogger/SAConsoleLogger.m
@@ -44,10 +44,9 @@ - (NSString *)sensorsdata_unicodeString {
     [mutableString appendString:@"\""];
     NSData *data = [mutableString dataUsingEncoding:NSUTF8StringEncoding];
     
-    NSError *error = nil;
     NSPropertyListFormat format = NSPropertyListOpenStepFormat;
-    NSString *formatString = [NSPropertyListSerialization propertyListWithData:data options:NSPropertyListImmutable format:&format error:&error];
-    return error ? self : [formatString stringByReplacingOccurrencesOfString:@"\\r\\n" withString:@"\n"];
+    NSString *formatString = [NSPropertyListSerialization propertyListWithData:data options:NSPropertyListImmutable format:&format error:NULL];
+    return (!formatString || ![formatString isKindOfClass:NSString.class]) ? self : [formatString stringByReplacingOccurrencesOfString:@"\\r\\n" withString:@"\n"];
 }
 
 @end
diff --git a/SensorsAnalyticsSDK/Core/SensorsAnalyticsSDK.m b/SensorsAnalyticsSDK/Core/SensorsAnalyticsSDK.m
index 5289af8d..710f0f43 100755
--- a/SensorsAnalyticsSDK/Core/SensorsAnalyticsSDK.m
+++ b/SensorsAnalyticsSDK/Core/SensorsAnalyticsSDK.m
@@ -64,7 +64,7 @@
 #import "SALimitKeyManager.h"
 #import "NSDictionary+SACopyProperties.h"
 
-#define VERSION @"4.5.21"
+#define VERSION @"4.5.22"
 
 void *SensorsAnalyticsQueueTag = &SensorsAnalyticsQueueTag;
 
@@ -974,12 +974,22 @@ - (void)increment:(NSDictionary *)profileDict {
 }
 
 - (void)append:(NSString *)profile by:(NSObject<NSFastEnumeration> *)content {
-    if (profile && content) {
-        if ([content isKindOfClass:[NSSet class]] || [content isKindOfClass:[NSArray class]]) {
-            SAProfileAppendEventObject *object = [[SAProfileAppendEventObject alloc] initWithType:kSAProfileAppend];
-            
-            [self trackEventObject:object properties:@{profile: content}];
-        }
+    if (!profile || !content) {
+        SALogWarn(@"content and profile cannot be empty, please check the value");
+        return;
+    }
+    if (![content isKindOfClass:NSArray.class] && ![content isKindOfClass:NSSet.class]) {
+        SALogWarn(@"content values should be NSArray or NSSet class, but current value: %@, with invalid type: %@", content, [content class]);
+        return;
+    }
+
+    SAProfileAppendEventObject *object = [[SAProfileAppendEventObject alloc] initWithType:kSAProfileAppend];
+    // 针对 NSArray 元素去重
+    if ([content isKindOfClass:NSArray.class]) {
+        NSSet *uniqueSet = [NSSet setWithArray:(NSArray *)content];
+        [self trackEventObject:object properties:@{profile: uniqueSet}];
+    } else {
+        [self trackEventObject:object properties:@{profile: content}];
     }
 }
 
diff --git a/SensorsAnalyticsSDK/Location/SALocationManager.m b/SensorsAnalyticsSDK/Location/SALocationManager.m
index ed1c1d7a..0a529f4c 100644
--- a/SensorsAnalyticsSDK/Location/SALocationManager.m
+++ b/SensorsAnalyticsSDK/Location/SALocationManager.m
@@ -30,6 +30,10 @@
 static NSString * const kSAEventPresetPropertyLatitude = @"$latitude";
 static NSString * const kSAEventPresetPropertyLongitude = @"$longitude";
 static NSString * const kSAEventPresetPropertyCoordinateSystem = @"$geo_coordinate_system";
+
+/* 国际通用的地球坐标系，CLLocationManager 采集定位输出结果是 WGS-84 坐标
+ 国内地图，比如高德、腾讯等，因为国家的保密要求，使用的是偏移后 GCJ-02坐标，戏称“火星坐标”，和 WGS84 存在坐标偏差
+ */
 static NSString * const kSAAppleCoordinateSystem = @"WGS84";
 
 @interface SALocationManager() <CLLocationManagerDelegate>
diff --git a/SensorsAnalyticsSDK/Visualized/WebElementInfo/SAVisualizedElementView.h b/SensorsAnalyticsSDK/Visualized/WebElementInfo/SAVisualizedElementView.h
index df871a3e..4213ecf1 100644
--- a/SensorsAnalyticsSDK/Visualized/WebElementInfo/SAVisualizedElementView.h
+++ b/SensorsAnalyticsSDK/Visualized/WebElementInfo/SAVisualizedElementView.h
@@ -61,7 +61,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, assign) NSInteger level;
 
 /// 元素平台
-@property (nonatomic, assign) NSString *platform;
+@property (nonatomic, copy) NSString *platform;
 
 @end