diff --git a/Vienna/Sources/Info panel/InfoPanelController.m b/Vienna/Sources/Info panel/InfoPanelController.m
index 8559ba4055..b0808141ce 100644
--- a/Vienna/Sources/Info panel/InfoPanelController.m	
+++ b/Vienna/Sources/Info panel/InfoPanelController.m	
@@ -194,14 +194,15 @@ - (IBAction)validateURL:(id)sender {
     NSURLComponents *urlComponents = [NSURLComponents componentsWithString:validatorURL];
 
     NSString *validatedURL = self.urlField.stringValue.vna_trimmed;
+    // Override the text field's URL with the validated one.
+    self.urlField.stringValue = validatedURL;
+
     NSCharacterSet *urlQuerySet = NSCharacterSet.URLQueryAllowedCharacterSet;
     NSString *encodedURL = [validatedURL stringByAddingPercentEncodingWithAllowedCharacters:urlQuerySet];
-
-    // Override the text field's URL with the encoded one.
-    self.urlField.stringValue = encodedURL;
-
+    // prevent any confusion between feed's URL query string and validator's URL query string
+    encodedURL = [encodedURL stringByReplacingOccurrencesOfString:@"&" withString:@"%26"];
     // Create the query using the encoded URL.
-    urlComponents.query = [NSString stringWithFormat:@"url=%@", encodedURL];
+    urlComponents.percentEncodedQuery = [NSString stringWithFormat:@"url=%@", encodedURL];
 
     if (self.delegate) {
         [self.delegate infoPanelControllerWillOpenURL:urlComponents.URL];
diff --git a/Vienna/Sources/Main window/ArticleListView.m b/Vienna/Sources/Main window/ArticleListView.m
index fdc5abbc5f..7dcad5928c 100644
--- a/Vienna/Sources/Main window/ArticleListView.m	
+++ b/Vienna/Sources/Main window/ArticleListView.m	
@@ -938,7 +938,7 @@ -(void)scrollDownDetailsOrNextUnread
         [(NSView *)articleText scrollPageDown:nil];
     } else {
         ArticleController * articleController = self.controller.articleController;
-        [articleController markReadByArray:articleController.markedArticleRange readFlag:YES];
+        [articleController markReadByArray:self.markedArticleRange readFlag:YES];
         [articleController displayNextUnread];
     }
 }
diff --git a/Vienna/Sources/Parsing/AtomFeed.m b/Vienna/Sources/Parsing/AtomFeed.m
index c350bdcb29..046ef6188e 100644
--- a/Vienna/Sources/Parsing/AtomFeed.m
+++ b/Vienna/Sources/Parsing/AtomFeed.m
@@ -253,7 +253,7 @@ - (BOOL)initAtomFeed:(NSXMLElement *)atomElement
                 }
 
                 // Parse item date
-                if (isArticleElementAtomType && ([articleItemTag isEqualToString:@"modified"] || [articleItemTag isEqualToString:@"updated"])) {
+                if (isArticleElementAtomType && ([articleItemTag isEqualToString:@"updated"] || [articleItemTag isEqualToString:@"modified"])) {
                     NSString *dateString = itemChildElement.stringValue;
                     NSDate *newDate = [self dateWithXMLString:dateString];
                     if (newFeedItem.modificationDate == nil || [newDate isGreaterThan:newFeedItem.modificationDate]) {
@@ -263,7 +263,7 @@ - (BOOL)initAtomFeed:(NSXMLElement *)atomElement
                 }
 
                 // Parse item date
-                if (isArticleElementAtomType && ([articleItemTag isEqualToString:@"created"] || [articleItemTag isEqualToString:@"published"])) {
+                if (isArticleElementAtomType && ([articleItemTag isEqualToString:@"published"] || [articleItemTag isEqualToString:@"created"] || [articleItemTag isEqualToString:@"issued"])) {
                     NSString *dateString = itemChildElement.stringValue;
                     NSDate *newDate = [self dateWithXMLString:dateString];
                     if (newFeedItem.publicationDate == nil || [newDate isLessThan:newFeedItem.publicationDate]) {