diff --git a/.github/pull_request_template.yml b/.github/PULL_REQUEST_TEMPLATE.md
similarity index 100%
rename from .github/pull_request_template.yml
rename to .github/PULL_REQUEST_TEMPLATE.md
diff --git a/src/gui/transferlistsortmodel.cpp b/src/gui/transferlistsortmodel.cpp
index fcf9e31fd..2f442d13a 100644
--- a/src/gui/transferlistsortmodel.cpp
+++ b/src/gui/transferlistsortmodel.cpp
@@ -51,10 +51,8 @@ namespace
         const bool isLeftValid = left.isValid();
         const bool isRightValid = right.isValid();
 
-        if (isLeftValid && isRightValid)
+        if (isLeftValid == isRightValid)
             return threeWayCompare(left, right);
-        if (!isLeftValid && !isRightValid)
-            return 0;
         return isLeftValid ? -1 : 1;
     }
 
diff --git a/src/webui/api/torrentscontroller.cpp b/src/webui/api/torrentscontroller.cpp
index 771cddf0e..65b579c67 100644
--- a/src/webui/api/torrentscontroller.cpp
+++ b/src/webui/api/torrentscontroller.cpp
@@ -176,7 +176,7 @@ namespace
         const QJsonObject dht
         {
             {KEY_TRACKER_URL, "** [DHT] **"},
-            {KEY_TRACKER_TIER, ""},
+            {KEY_TRACKER_TIER, -1},
             {KEY_TRACKER_MSG, (isTorrentPrivate ? privateMsg : "")},
             {KEY_TRACKER_STATUS, ((BitTorrent::Session::instance()->isDHTEnabled() && !isTorrentPrivate) ? working : disabled)},
             {KEY_TRACKER_PEERS_COUNT, 0},
@@ -188,7 +188,7 @@ namespace
         const QJsonObject pex
         {
             {KEY_TRACKER_URL, "** [PeX] **"},
-            {KEY_TRACKER_TIER, ""},
+            {KEY_TRACKER_TIER, -1},
             {KEY_TRACKER_MSG, (isTorrentPrivate ? privateMsg : "")},
             {KEY_TRACKER_STATUS, ((BitTorrent::Session::instance()->isPeXEnabled() && !isTorrentPrivate) ? working : disabled)},
             {KEY_TRACKER_PEERS_COUNT, 0},
@@ -200,7 +200,7 @@ namespace
         const QJsonObject lsd
         {
             {KEY_TRACKER_URL, "** [LSD] **"},
-            {KEY_TRACKER_TIER, ""},
+            {KEY_TRACKER_TIER, -1},
             {KEY_TRACKER_MSG, (isTorrentPrivate ? privateMsg : "")},
             {KEY_TRACKER_STATUS, ((BitTorrent::Session::instance()->isLSDEnabled() && !isTorrentPrivate) ? working : disabled)},
             {KEY_TRACKER_PEERS_COUNT, 0},
diff --git a/src/webui/www/private/scripts/prop-trackers.js b/src/webui/www/private/scripts/prop-trackers.js
index 985449c04..718d170ba 100644
--- a/src/webui/www/private/scripts/prop-trackers.js
+++ b/src/webui/www/private/scripts/prop-trackers.js
@@ -97,7 +97,7 @@ window.qBittorrent.PropTrackers = (function() {
 
                         const row = {
                             rowId: tracker.url,
-                            tier: tracker.tier,
+                            tier: (tracker.tier >= 0) ? tracker.tier : "",
                             url: tracker.url,
                             status: status,
                             peers: tracker.num_peers,