diff --git a/CHANGELOG.md b/CHANGELOG.md
index c70c8600..7a0318bf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 ### Development versions after 0.11.1 release
 
+#### Build 2101040
+
+-   Replaced Red & Blue effect with Aurora effect (PR #1589)
+-   Fixed HTTP changing segments uncommanded (#1618)
+-   Updated copyright year and contributor page link
+
 #### Build 2012311
 
 -   Fixed Countdown mode
diff --git a/wled00/FX_fcn.cpp b/wled00/FX_fcn.cpp
index 4d66a67a..96044512 100644
--- a/wled00/FX_fcn.cpp
+++ b/wled00/FX_fcn.cpp
@@ -394,7 +394,10 @@ void WS2812FX::setColor(uint8_t slot, uint32_t c) {
   if (applyToAllSelected) {
     for (uint8_t i = 0; i < MAX_NUM_SEGMENTS; i++)
     {
-      if (_segments[i].isSelected()) _segments[i].colors[slot] = c;
+      if (_segments[i].isSelected()) {
+        _segments[i].colors[slot] = c;
+        applied = true;
+      }
     }
   }
 
diff --git a/wled00/colors.cpp b/wled00/colors.cpp
index 0996de07..625d9d10 100644
--- a/wled00/colors.cpp
+++ b/wled00/colors.cpp
@@ -33,6 +33,11 @@ void colorFromUint24(uint32_t in, bool secondary)
   }
 }
 
+//store color components in uint32_t
+uint32_t colorFromRgbw(byte* rgbw) {
+  return (rgbw[0] << 16) + (rgbw[1] << 8) + rgbw[2] + (rgbw[3] << 24);
+}
+
 //relatively change white brightness, minumum A=5
 void relativeChangeWhite(int8_t amount, byte lowerBoundary)
 {
diff --git a/wled00/data/settings_sec.htm b/wled00/data/settings_sec.htm
index f4761db1..f9d1a3a5 100644
--- a/wled00/data/settings_sec.htm
+++ b/wled00/data/settings_sec.htm
@@ -46,9 +46,9 @@
 		Enable ArduinoOTA: <input type="checkbox" name="AO"><br>
 		<h3>About</h3>
 		<a href="https://github.com/Aircoookie/WLED/" target="_blank">WLED</a> version ##VERSION##<!-- Autoreplaced from package.json --><br><br>
-		<a href="https://github.com/Aircoookie/WLED/wiki/Contributors-&-About" target="_blank">Contributors, dependencies and special thanks</a><br>
+		<a href="https://github.com/Aircoookie/WLED/wiki/Contributors-and-credits" target="_blank">Contributors, dependencies and special thanks</a><br>
 		A huge thank you to everyone who helped me create WLED!<br><br>
-		(c) 2016-2020 Christian Schwinne <br>
+		(c) 2016-2021 Christian Schwinne <br>
 		<i>Licensed under the <a href="https://github.com/Aircoookie/WLED/blob/master/LICENSE" target="_blank">MIT license</a></i><br><br>
 		Server message: <span class="sip"> Response error! </span><hr>
 		<button type="button" onclick="B()">Back</button><button type="submit">Save & Reboot</button>
diff --git a/wled00/fcn_declare.h b/wled00/fcn_declare.h
index a1c60eee..4e27f129 100644
--- a/wled00/fcn_declare.h
+++ b/wled00/fcn_declare.h
@@ -34,6 +34,7 @@ void serializeConfigSec();
 //colors.cpp
 void colorFromUint32(uint32_t in, bool secondary = false);
 void colorFromUint24(uint32_t in, bool secondary = false);
+uint32_t colorFromRgbw(byte* rgbw);
 void relativeChangeWhite(int8_t amount, byte lowerBoundary = 0);
 void colorHStoRGB(uint16_t hue, byte sat, byte* rgb); //hue, sat to rgb
 void colorKtoRGB(uint16_t kelvin, byte* rgb);
diff --git a/wled00/set.cpp b/wled00/set.cpp
index e7864529..c66abdb3 100644
--- a/wled00/set.cpp
+++ b/wled00/set.cpp
@@ -381,7 +381,14 @@ bool handleSet(AsyncWebServerRequest *request, const String& req, bool apply)
   DEBUG_PRINT(F("API req: "));
   DEBUG_PRINTLN(req);
 
-  strip.applyToAllSelected = true;
+  strip.applyToAllSelected = false;
+  //snapshot to check if request changed values later, temporary.
+  byte prevCol[4] = {col[0], col[1], col[2], col[3]};
+  byte prevColSec[4] = {colSec[0], colSec[1], colSec[2], colSec[3]};
+  byte prevEffect = effectCurrent;
+  byte prevSpeed = effectSpeed;
+  byte prevIntensity = effectIntensity;
+  byte prevPalette = effectPalette;
 
   //segment select (sets main segment)
   byte prevMain = strip.getMainSegmentId();
@@ -389,16 +396,16 @@ bool handleSet(AsyncWebServerRequest *request, const String& req, bool apply)
   if (pos > 0) {
     strip.mainSegment = getNumVal(&req, pos);
   }
-  byte main = strip.getMainSegmentId();
-  if (main != prevMain) setValuesFromMainSeg();
+  byte selectedSeg = strip.getMainSegmentId();
+  if (selectedSeg != prevMain) setValuesFromMainSeg();
 
   pos = req.indexOf(F("SS="));
   if (pos > 0) {
     byte t = getNumVal(&req, pos);
-    if (t < strip.getMaxSegments()) main = t;
+    if (t < strip.getMaxSegments()) selectedSeg = t;
   }
 
-  WS2812FX::Segment& mainseg = strip.getSegment(main);
+  WS2812FX::Segment& mainseg = strip.getSegment(selectedSeg);
   pos = req.indexOf(F("SV=")); //segment selected
   if (pos > 0) {
     byte t = getNumVal(&req, pos);
@@ -432,9 +439,7 @@ bool handleSet(AsyncWebServerRequest *request, const String& req, bool apply)
   if (pos > 0) {
     spcI = getNumVal(&req, pos);
   }
-  strip.setSegment(main, startI, stopI, grpI, spcI);
-
-  main = strip.getMainSegmentId();
+  strip.setSegment(selectedSeg, startI, stopI, grpI, spcI);
 
    //set presets
   pos = req.indexOf(F("P1=")); //sets first preset for cycle
@@ -532,7 +537,12 @@ bool handleSet(AsyncWebServerRequest *request, const String& req, bool apply)
   if (pos > 0) {
     byte t[4];
     colorFromDecOrHexString(t, (char*)req.substring(pos + 3).c_str());
-    strip.setColor(2, t[0], t[1], t[2], t[3]);
+    if (selectedSeg != strip.getMainSegmentId()) {
+      strip.applyToAllSelected = true;
+      strip.setColor(2, t[0], t[1], t[2], t[3]);
+    } else {
+      strip.getSegment(selectedSeg).colors[2] = ((t[0] << 16) + (t[1] << 8) + t[2] + (t[3] << 24));
+    }
   }
 
   //set to random hue SR=0->1st SR=1->2nd
@@ -647,19 +657,19 @@ bool handleSet(AsyncWebServerRequest *request, const String& req, bool apply)
 
   //Segment reverse
   pos = req.indexOf(F("RV="));
-  if (pos > 0) strip.getSegment(main).setOption(SEG_OPTION_REVERSED, req.charAt(pos+3) != '0');
+  if (pos > 0) strip.getSegment(selectedSeg).setOption(SEG_OPTION_REVERSED, req.charAt(pos+3) != '0');
 
   //Segment reverse
   pos = req.indexOf(F("MI="));
-  if (pos > 0) strip.getSegment(main).setOption(SEG_OPTION_MIRROR, req.charAt(pos+3) != '0');
+  if (pos > 0) strip.getSegment(selectedSeg).setOption(SEG_OPTION_MIRROR, req.charAt(pos+3) != '0');
 
   //Segment brightness/opacity
   pos = req.indexOf(F("SB="));
   if (pos > 0) {
     byte segbri = getNumVal(&req, pos);
-    strip.getSegment(main).setOption(SEG_OPTION_ON, segbri);
+    strip.getSegment(selectedSeg).setOption(SEG_OPTION_ON, segbri);
     if (segbri) {
-      strip.getSegment(main).opacity = segbri;
+      strip.getSegment(selectedSeg).opacity = segbri;
     }
   }
 
@@ -716,12 +726,44 @@ bool handleSet(AsyncWebServerRequest *request, const String& req, bool apply)
   }
   //you can add more if you need
 
+  //apply to all selected manually to prevent #1618. Temporary
+  bool col0Changed = false, col1Changed = false;
+  for (uint8_t i = 0; i < 4; i++) {
+    if (col[i] != prevCol[i]) col0Changed = true;
+    if (colSec[i] != prevColSec[i]) col1Changed = true;
+  }
+  for (uint8_t i = 0; i < strip.getMaxSegments(); i++)
+  {
+    WS2812FX::Segment& seg = strip.getSegment(i);
+    if (!seg.isSelected()) continue;
+    if (effectCurrent != prevEffect) seg.mode = effectCurrent;
+    if (effectSpeed != prevSpeed) seg.speed = effectSpeed;
+    if (effectIntensity != prevIntensity) seg.intensity = effectIntensity;
+    if (effectPalette != prevPalette) seg.palette = effectPalette;
+  }
+
+  if (col0Changed) {
+    if (selectedSeg == strip.getMainSegmentId()) {
+      strip.applyToAllSelected = true;
+      strip.setColor(0, colorFromRgbw(col));
+    }
+  }
+  if (col1Changed) {
+    if (selectedSeg == strip.getMainSegmentId()) {
+      strip.applyToAllSelected = true;
+      strip.setColor(1, colorFromRgbw(colSec));
+    }
+  }
+  //end of temporary fix code
+
   if (!apply) return true; //when called by JSON API, do not call colorUpdated() here
   
   //internal call, does not send XML response
   pos = req.indexOf(F("IN"));
   if (pos < 1) XML_response(request);
 
+  strip.applyToAllSelected = false;
+
   pos = req.indexOf(F("&NN")); //do not send UDP notifications this time
   colorUpdated((pos > 0) ? NOTIFIER_CALL_MODE_NO_NOTIFY : NOTIFIER_CALL_MODE_DIRECT_CHANGE);
 
diff --git a/wled00/wled.h b/wled00/wled.h
index ad4e701e..81155ab9 100644
--- a/wled00/wled.h
+++ b/wled00/wled.h
@@ -8,7 +8,7 @@
  */
 
 // version code in format yymmddb (b = daily build)
-#define VERSION 2012311
+#define VERSION 2101040
 
 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG