diff --git a/Core/HLE/sceDmac.cpp b/Core/HLE/sceDmac.cpp
index ea509746f7..da48432e8b 100644
--- a/Core/HLE/sceDmac.cpp
+++ b/Core/HLE/sceDmac.cpp
@@ -79,7 +79,7 @@ static u32 sceDmacMemcpy(u32 dst, u32 src, u32 size) {
 	}
 
 	if (dmacMemcpyDeadline > CoreTiming::GetTicks()) {
-		WARN_LOG_REPORT(HLE, "sceDmacMemcpy(dest=%08x, src=%08x, size=%i): overlapping read", dst, src, size);
+		WARN_LOG_REPORT_ONCE(overlapDmacMemcpy, HLE, "sceDmacMemcpy(dest=%08x, src=%08x, size=%d): overlapping read", dst, src, size);
 		// TODO: Should block, seems like copy doesn't start until previous finishes.
 		// Might matter for overlapping copies.
 	} else {
diff --git a/GPU/Common/ShaderId.cpp b/GPU/Common/ShaderId.cpp
index 6329103da4..df140be611 100644
--- a/GPU/Common/ShaderId.cpp
+++ b/GPU/Common/ShaderId.cpp
@@ -77,7 +77,7 @@ void ComputeVertexShaderID(ShaderID *id_out, u32 vertType, bool useHWTransform)
 
 	ShaderID id;
 	id.SetBit(VS_BIT_LMODE, lmode);
-	id.SetBit(VS_BIT_IS_THROUGH, gstate.isModeThrough());
+	id.SetBit(VS_BIT_IS_THROUGH, isModeThrough);
 	id.SetBit(VS_BIT_ENABLE_FOG, enableFog);
 	id.SetBit(VS_BIT_HAS_COLOR, hasColor);
 
@@ -143,6 +143,9 @@ void ComputeVertexShaderID(ShaderID *id_out, u32 vertType, bool useHWTransform)
 
 	id.SetBit(VS_BIT_FLATSHADE, doFlatShading);
 
+	// These two bits cannot be combined, otherwise havoc occurs. We get reports that indicate this happened somehow... "ERROR: 0:14: 'u_proj' : undeclared identifier"
+	_dbg_assert_msg_(G3D, !id.Bit(VS_BIT_USE_HW_TRANSFORM) || !id.Bit(VS_BIT_IS_THROUGH), "Can't have both THROUGH and USE_HW_TRANSFORM together!");
+
 	*id_out = id;
 }
 
diff --git a/GPU/GLES/ShaderManagerGLES.cpp b/GPU/GLES/ShaderManagerGLES.cpp
index d0b7f6702d..fc1bda1304 100644
--- a/GPU/GLES/ShaderManagerGLES.cpp
+++ b/GPU/GLES/ShaderManagerGLES.cpp
@@ -773,10 +773,9 @@ Shader *ShaderManagerGLES::ApplyVertexShader(int prim, u32 vertType, ShaderID *V
 		gstate_c.CleanUniforms();
 	}
 
-	bool useHWTransform = CanUseHardwareTransform(prim);
-
 	if (gstate_c.IsDirty(DIRTY_VERTEXSHADER_STATE)) {
 		gstate_c.Clean(DIRTY_VERTEXSHADER_STATE);
+		bool useHWTransform = CanUseHardwareTransform(prim);
 		ComputeVertexShaderID(VSID, vertType, useHWTransform);
 	} else {
 		*VSID = lastVSID_;
@@ -987,6 +986,12 @@ void ShaderManagerGLES::LoadAndPrecompile(const std::string &filename) {
 			return;
 		}
 		if (!vsCache_.Get(id)) {
+			if (id.Bit(VS_BIT_IS_THROUGH) && id.Bit(VS_BIT_USE_HW_TRANSFORM)) {
+				// Clearly corrupt, bailing.
+				ERROR_LOG_REPORT(G3D, "Corrupt shader cache: Both IS_THROUGH and USE_HW_TRANSFORM set.");
+				return;
+			}
+
 			Shader *vs = CompileVertexShader(id);
 			if (vs->Failed()) {
 				// Give up on using the cache, just bail. We can't safely create the fallback shaders here
diff --git a/GPU/Vulkan/FramebufferVulkan.cpp b/GPU/Vulkan/FramebufferVulkan.cpp
index a2fe348305..331123fc1c 100644
--- a/GPU/Vulkan/FramebufferVulkan.cpp
+++ b/GPU/Vulkan/FramebufferVulkan.cpp
@@ -583,8 +583,6 @@ void FramebufferManagerVulkan::EndFrame() {
 }
 
 void FramebufferManagerVulkan::DeviceLost() {
-	vulkan2D_->DeviceLost();
-
 	DestroyAllFBOs();
 	DestroyDeviceObjects();
 }
@@ -593,7 +591,6 @@ void FramebufferManagerVulkan::DeviceRestore(VulkanContext *vulkan, Draw::DrawCo
 	vulkan_ = vulkan;
 	draw_ = draw;
 
-	vulkan2D_->DeviceRestore(vulkan_);
 	InitDeviceObjects();
 }
 
diff --git a/GPU/Vulkan/GPU_Vulkan.cpp b/GPU/Vulkan/GPU_Vulkan.cpp
index 334d98e552..a862bee967 100644
--- a/GPU/Vulkan/GPU_Vulkan.cpp
+++ b/GPU/Vulkan/GPU_Vulkan.cpp
@@ -609,8 +609,8 @@ void GPU_Vulkan::DestroyDeviceObjects() {
 
 void GPU_Vulkan::DeviceLost() {
 	DestroyDeviceObjects();
-
 	framebufferManagerVulkan_->DeviceLost();
+	vulkan2D_.DeviceLost();
 	drawEngine_.DeviceLost();
 	pipelineManager_->DeviceLost();
 	textureCacheVulkan_->DeviceLost();
@@ -628,6 +628,7 @@ void GPU_Vulkan::DeviceRestore() {
 	UpdateCmdInfo();
 
 	framebufferManagerVulkan_->DeviceRestore(vulkan_, draw_);
+	vulkan2D_.DeviceRestore(vulkan_);
 	drawEngine_.DeviceRestore(vulkan_, draw_);
 	pipelineManager_->DeviceRestore(vulkan_);
 	textureCacheVulkan_->DeviceRestore(vulkan_, draw_);
diff --git a/UI/CwCheatScreen.cpp b/UI/CwCheatScreen.cpp
index de30cc728f..ca670b02d6 100644
--- a/UI/CwCheatScreen.cpp
+++ b/UI/CwCheatScreen.cpp
@@ -221,7 +221,7 @@ void CwCheatScreen::ParseCheatDB(std::string line, std::vector<std::string> titl
 					continue;
 				}
 			loop:;
-			} while (fs.good() && line[0] != '_' && line[1] != 'S');
+			} while (fs.good() && line[0] == '_' && line[1] != 'S');
 			finished = true;
 		}
 		if (finished == true)
@@ -236,7 +236,7 @@ void CwCheatScreen::ParseCheatDB(std::string line, std::vector<std::string> titl
 	File::OpenCPPFile(fs, activeCheatFile, std::ios::out | std::ios::app);
 
 	auto it = title.begin();
-	if (title2[0] != '_' && title2[1] != 'S' && it != title.end() && (++it) != title.end()) {
+	if (title2[0] == '_' && title2[1] != 'S' && it != title.end() && (++it) != title.end()) {
 		fs << title[0] << "\n" << title[1];
 	}