diff --git a/Common/GPU/OpenGL/thin3d_gl.cpp b/Common/GPU/OpenGL/thin3d_gl.cpp
index 2fc87b164f..7a9a8c0b8f 100644
--- a/Common/GPU/OpenGL/thin3d_gl.cpp
+++ b/Common/GPU/OpenGL/thin3d_gl.cpp
@@ -746,7 +746,10 @@ OpenGLContext::OpenGLContext(bool canChangeSwapInterval) : renderManager_(frameT
 	}
 
 	// NOTE: We only support framebuffer fetch on ES3 due to past issues..
-	if (gl_extensions.IsGLES && gl_extensions.GLES3) {
+	// Adreno 5xx (seen on a 506, driver V@145) can fetch black instead of what an earlier draw in the same pass
+	// wrote there, so it gets framebuffer copies instead.
+	bool brokenFramebufferFetch = caps_.vendor == GPUVendor::VENDOR_QUALCOMM && gl_extensions.modelNumber < 600;
+	if (gl_extensions.IsGLES && gl_extensions.GLES3 && !brokenFramebufferFetch) {
 		caps_.framebufferFetchSupported = (gl_extensions.EXT_shader_framebuffer_fetch || gl_extensions.ARM_shader_framebuffer_fetch);
 
 		if (gl_extensions.EXT_shader_framebuffer_fetch) {
diff --git a/Common/GPU/Vulkan/thin3d_vulkan.cpp b/Common/GPU/Vulkan/thin3d_vulkan.cpp
index 5e93a3082f..8a1fc3d9ca 100644
--- a/Common/GPU/Vulkan/thin3d_vulkan.cpp
+++ b/Common/GPU/Vulkan/thin3d_vulkan.cpp
@@ -1087,6 +1087,11 @@ VKContext::VKContext(VulkanContext *vulkan, bool useRenderThread)
 		if (!turnip && (deviceProps.driverVersion < 0x801EA000 || deviceProps.deviceID < 0x06000000))
 			bugs_.Infest(Bugs::COLORWRITEMASK_BROKEN_WITH_DEPTHTEST);
 
+		// The light ubershader's loop over the lights gives wrong lighting (LittleBigPlanet's Sackboy and scenery came
+		// out pale). Seen on Adreno 506 with a Vulkan 1.0.20 driver; the per-light shaders are fine.
+		if (!turnip && deviceProps.deviceID >= 0x05000000 && deviceProps.deviceID < 0x06000000)
+			bugs_.Infest(Bugs::UNIFORM_INDEXING_BROKEN);
+
 		// Trying to follow all the rules in https://registry.khronos.org/vulkan/specs/1.3/html/vkspec.html#synchronization-pipeline-barriers-subpass-self-dependencies
 		// and https://registry.khronos.org/vulkan/specs/1.3/html/vkspec.html#renderpass-feedbackloop, but still it doesn't
 		// quite work - artifacts on triangle boundaries on Adreno.
diff --git a/GPU/Common/FragmentShaderGenerator.cpp b/GPU/Common/FragmentShaderGenerator.cpp
index 951d2e7576..898eb632db 100644
--- a/GPU/Common/FragmentShaderGenerator.cpp
+++ b/GPU/Common/FragmentShaderGenerator.cpp
@@ -1200,18 +1200,26 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
 		}
 	}
 
+	// With EXT_shader_framebuffer_fetch, fragColor0 is inout. Adreno 506 (driver V@145) reads it back wrong once
+	// the shader has written it (packing it for the write mask came out black), so build the color in a local.
+	const char *fragColor0 = compat.fragColor0;
+	if (fetchFramebuffer && compat.lastFragData && !strcmp(compat.lastFragData, fragColor0)) {
+		WRITE(p, "  vec4 outColor0;\n");
+		fragColor0 = "outColor0";
+	}
+
 	switch (stencilToAlpha) {
 	case REPLACE_ALPHA_DUALSOURCE:
-		WRITE(p, "  %s = vec4(v.rgb, %s);\n", compat.fragColor0, replacedAlpha);
+		WRITE(p, "  %s = vec4(v.rgb, %s);\n", fragColor0, replacedAlpha);
 		WRITE(p, "  %s = vec4(0.0, 0.0, 0.0, v.a);\n", compat.fragColor1);
 		break;
 
 	case REPLACE_ALPHA_YES:
-		WRITE(p, "  %s = vec4(v.rgb, %s);\n", compat.fragColor0, replacedAlpha);
+		WRITE(p, "  %s = vec4(v.rgb, %s);\n", fragColor0, replacedAlpha);
 		break;
 
 	case REPLACE_ALPHA_NO:
-		WRITE(p, "  %s = v;\n", compat.fragColor0);
+		WRITE(p, "  %s = v;\n", fragColor0);
 		break;
 
 	default:
@@ -1221,10 +1229,10 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
 
 	switch (simulateLogicOpType) {
 	case LOGICOPTYPE_ONE:
-		WRITE(p, "  %s.rgb = splat3(1.0);\n", compat.fragColor0);
+		WRITE(p, "  %s.rgb = splat3(1.0);\n", fragColor0);
 		break;
 	case LOGICOPTYPE_INVERT:
-		WRITE(p, "  %s.rgb = splat3(1.0) - %s.rgb;\n", compat.fragColor0, compat.fragColor0);
+		WRITE(p, "  %s.rgb = splat3(1.0) - %s.rgb;\n", fragColor0, fragColor0);
 		break;
 	case LOGICOPTYPE_NORMAL:
 		break;
@@ -1236,7 +1244,7 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
 
 	// Final color computed - apply logic ops and bitwise color write mask, through shader blending, if specified.
 	if (colorWriteMask || replaceLogicOp) {
-		WRITE(p, "  highp uint v32 = packUnorm4x8%s(%s);\n", packSuffix, compat.fragColor0);
+		WRITE(p, "  highp uint v32 = packUnorm4x8%s(%s);\n", packSuffix, fragColor0);
 		WRITE(p, "  highp uint d32 = packUnorm4x8%s(destColor);\n", packSuffix);
 
 		// v32 is both the "s" to the logical operation, and the value that we'll merge to the destination with masking later.
@@ -1268,11 +1276,14 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
 			else
 				WRITE(p, "  v32 = (v32 & u_colorWriteMask & 0x00FFFFFFu) | (d32 & (~u_colorWriteMask | 0xFF000000u));\n");
 		}
-		WRITE(p, "  %s = unpackUnorm4x8%s(v32);\n", compat.fragColor0, packSuffix);
+		WRITE(p, "  %s = unpackUnorm4x8%s(v32);\n", fragColor0, packSuffix);
 	}
 
 	if (blueToAlpha) {
-		WRITE(p, "  %s = vec4(0.0, 0.0, 0.0, %s.z);  // blue to alpha\n", compat.fragColor0, compat.fragColor0);
+		WRITE(p, "  %s = vec4(0.0, 0.0, 0.0, %s.z);  // blue to alpha\n", fragColor0, fragColor0);
+	}
+	if (fragColor0 != compat.fragColor0) {
+		WRITE(p, "  %s = %s;\n", compat.fragColor0, fragColor0);
 	}
 
 	if (fsDepthClamp || fsMinmaxDiscard) {