diff --git a/src/field_specials.c b/src/field_specials.c
index 66ded6c30b..c4ad770a9a 100644
--- a/src/field_specials.c
+++ b/src/field_specials.c
@@ -3343,6 +3343,7 @@ static void ChangeDeoxysRockLevel(u8 rockLevel)
 {
     u8 paletteNum = IndexOfSpritePaletteTag(OBJ_EVENT_PAL_TAG_BIRTH_ISLAND_STONE);
     LoadPalette(&sDeoxysRockPalettes[rockLevel], OBJ_PLTT_ID(paletteNum), PLTT_SIZEOF(4));
+    UpdateSpritePaletteWithWeather(paletteNum, FALSE);
 
     if (rockLevel == 0)
         PlaySE(SE_M_CONFUSE_RAY); // Failure sound
diff --git a/src/field_weather_effect.c b/src/field_weather_effect.c
index f0c1c4eeba..94ae288d60 100644
--- a/src/field_weather_effect.c
+++ b/src/field_weather_effect.c
@@ -1387,7 +1387,7 @@ static void DestroyFogHorizontalSprites(void);
 // Updates just the color of shadows to match special weather blending
 u8 UpdateShadowColor(u16 color) {
   u8 paletteNum = IndexOfSpritePaletteTag(TAG_WEATHER_START);
-  u16 tempBuffer[16];
+  u16 ALIGNED(4) tempBuffer[16];
   u16 blendedColor;
   if (paletteNum != 0xFF) {
     u16 index = (paletteNum+16)*16+SHADOW_COLOR_INDEX;
diff --git a/src/fieldmap.c b/src/fieldmap.c
index c41a3b616b..0e48065a21 100644
--- a/src/fieldmap.c
+++ b/src/fieldmap.c
@@ -892,8 +892,10 @@ static void LoadTilesetPalette(struct Tileset const *tileset, u16 destOffset, u1
         }
         else if (tileset->isSecondary == TRUE)
         {
+            // (void*) is to silence 'source potentially unaligned' error
+            // All 'gTilesetPalettes_' arrays should have ALIGNED(4) in them
             if (skipFaded)
-                CpuFastCopy(tileset->palettes[NUM_PALS_IN_PRIMARY], &gPlttBufferUnfaded[destOffset], size);
+                CpuFastCopy((void*)tileset->palettes[NUM_PALS_IN_PRIMARY], &gPlttBufferUnfaded[destOffset], size);
             else
                 LoadPaletteFast(tileset->palettes[NUM_PALS_IN_PRIMARY], destOffset, size);
             low = NUM_PALS_IN_PRIMARY;
diff --git a/src/palette.c b/src/palette.c
index bda52a457a..f7584cd28f 100644
--- a/src/palette.c
+++ b/src/palette.c
@@ -1227,7 +1227,8 @@ void AvgPaletteWeighted(u16 *src0, u16 *src1, u16 *dst, u16 weight0) {
         r0 = r1 + (((r0 - r1) * weight0) >> 8);
         g0 = g1 + (((g0 - g1) * weight0) >> 8);
         b0 = b1 + (((b0 - b1) * weight0) >> 8);
-        *dst++ = (*dst & RGB_ALPHA) | RGB2(r0, g0, b0);  // preserve high bit of dst
+        *dst = (*dst & RGB_ALPHA) | RGB2(r0, g0, b0);  // preserve high bit of dst
+        dst++;
     }
 }