diff --git a/Common/GPU/Vulkan/thin3d_vulkan.cpp b/Common/GPU/Vulkan/thin3d_vulkan.cpp
index 88c4ee90d5..41edd287c4 100644
--- a/Common/GPU/Vulkan/thin3d_vulkan.cpp
+++ b/Common/GPU/Vulkan/thin3d_vulkan.cpp
@@ -825,6 +825,14 @@ VKContext::VKContext(VulkanContext *vulkan, bool splitSubmit)
 		bugs_.Infest(Bugs::EQUAL_WZ_CORRUPTS_DEPTH);
 		// At least one driver at the upper end of the range is known to be likely to suffer from the bug causing issue #13833 (Midnight Club map broken).
 		bugs_.Infest(Bugs::MALI_STENCIL_DISCARD_BUG);
+
+		// This started in driver 31 or 32.
+		if (VK_API_VERSION_MAJOR(deviceProps.driverVersion) >= 32) {
+			NOTICE_LOG(G3D, "Driver version %08x infested: major=%d", deviceProps.driverVersion, VK_API_VERSION_MAJOR(deviceProps.driverVersion));
+			bugs_.Infest(Bugs::MALI_CONSTANT_LOAD_BUG);  // See issue #15661
+		} else {
+			NOTICE_LOG(G3D, "Driver version %08x not infested: major=%d", deviceProps.driverVersion, VK_API_VERSION_MAJOR(deviceProps.driverVersion));
+		}
 	}
 
 	caps_.deviceID = deviceProps.deviceID;
diff --git a/Common/GPU/thin3d.cpp b/Common/GPU/thin3d.cpp
index 42349b4991..b5a2b89c2c 100644
--- a/Common/GPU/thin3d.cpp
+++ b/Common/GPU/thin3d.cpp
@@ -630,6 +630,7 @@ const char *Bugs::GetBugName(uint32_t bug) {
 	case EQUAL_WZ_CORRUPTS_DEPTH: return "EQUAL_WZ_CORRUPTS_DEPTH";
 	case MALI_STENCIL_DISCARD_BUG: return "MALI_STENCIL_DISCARD_BUG";
 	case RASPBERRY_SHADER_COMP_HANG: return "RASPBERRY_SHADER_COMP_HANG";
+	case MALI_CONSTANT_LOAD_BUG: return "MALI_CONSTANT_LOAD_BUG";
 	default: return "(N/A)";
 	}
 }
diff --git a/Common/GPU/thin3d.h b/Common/GPU/thin3d.h
index 45de0cc10c..7cccf0fd55 100644
--- a/Common/GPU/thin3d.h
+++ b/Common/GPU/thin3d.h
@@ -324,6 +324,7 @@ public:
 		EQUAL_WZ_CORRUPTS_DEPTH = 7,
 		MALI_STENCIL_DISCARD_BUG = 8,
 		RASPBERRY_SHADER_COMP_HANG = 9,
+		MALI_CONSTANT_LOAD_BUG = 10,
 		MAX_BUG,
 	};
 
diff --git a/GPU/Common/VertexShaderGenerator.cpp b/GPU/Common/VertexShaderGenerator.cpp
index a8f56be181..52624b6dcc 100644
--- a/GPU/Common/VertexShaderGenerator.cpp
+++ b/GPU/Common/VertexShaderGenerator.cpp
@@ -1052,6 +1052,9 @@ bool GenerateVertexShader(const VShaderID &id, char *buffer, const ShaderLanguag
 					WRITE(p, "  %sv_color0 = color0;\n", compat.vsOutPrefix);
 			} else {
 				WRITE(p, "  %sv_color0 = u_matambientalpha;\n", compat.vsOutPrefix);
+				if (bugs.Has(Draw::Bugs::MALI_CONSTANT_LOAD_BUG) && g_Config.bVendorBugChecksEnabled) {
+					WRITE(p, "  %sv_color0.r += 0.000001;\n", compat.vsOutPrefix);
+				}
 			}
 			if (lmode)
 				WRITE(p, "  %sv_color1 = splat3(0.0);\n", compat.vsOutPrefix);