diff --git a/platformio.ini b/platformio.ini
index abba37bd..73da6250 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -175,7 +175,7 @@ upload_speed = 115200
 # ------------------------------------------------------------------------------
 lib_compat_mode = strict
 lib_deps =
-    fastled/FastLED @ 3.5.0
+    fastled/FastLED @ 3.6.0
     IRremoteESP8266 @ 2.8.2
     makuna/NeoPixelBus @ 2.7.5
     https://github.com/Aircoookie/ESPAsyncWebServer.git @ ~2.0.7
@@ -201,7 +201,7 @@ build_flags =
   -DESP8266
   -DFP_IN_IROM
   ;-Wno-deprecated-declarations
-  -Wno-register  ;; leaves some warnings when compiling C files: command-line option '-Wno-register' is valid for C++/ObjC++ but not for C
+  ;-Wno-register  ;; leaves some warnings when compiling C files: command-line option '-Wno-register' is valid for C++/ObjC++ but not for C
   ;-Dregister= # remove warnings in C++17 due to use of deprecated register keyword by the FastLED library ;; warning: this can be dangerous
   -Wno-misleading-indentation
   ; NONOSDK22x_190703 = 2.2.2-dev(38a443e)
diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index b457e094..9ed56710 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -4903,7 +4903,7 @@ uint16_t mode_2Dgameoflife(void) { // Written by Ewoud Wijma, inspired by https:
     } // i,j
 
     // Rules of Life
-    uint32_t col = prevLeds[XY(x,y)];
+    uint32_t col = uint32_t(prevLeds[XY(x,y)]) & 0x00FFFFFF;  // uint32_t operator returns RGBA, we want RGBW -> cut off "alpha" byte
     uint32_t bgc = RGBW32(backgroundColor.r, backgroundColor.g, backgroundColor.b, 0);
     if      ((col != bgc) && (neighbors <  2)) SEGMENT.setPixelColorXY(x,y, bgc); // Loneliness
     else if ((col != bgc) && (neighbors >  3)) SEGMENT.setPixelColorXY(x,y, bgc); // Overpopulation