diff --git a/WickedEngine/wiRenderer.cpp b/WickedEngine/wiRenderer.cpp
index 322590b9e2..afd9046ebe 100644
--- a/WickedEngine/wiRenderer.cpp
+++ b/WickedEngine/wiRenderer.cpp
@@ -367,6 +367,8 @@ PipelineState PSO_object_wire_tessellation;
 wi::vector<CustomShader> customShaders;
 int RegisterCustomShader(const CustomShader& customShader)
 {
+	static std::mutex locker;
+	std::scoped_lock lck(locker);
 	int result = (int)customShaders.size();
 	customShaders.push_back(customShader);
 	return result;
@@ -1209,33 +1211,6 @@ void LoadShaders()
 
 	wi::jobsystem::Wait(ctx);
 
-	// Clear custom shaders (Custom shaders coming from user will need to be handled by the user in case of shader reload):
-	customShaders.clear();
-
-	// Hologram sample shader will be registered as custom shader:
-	wi::jobsystem::Execute(ctx, [](wi::jobsystem::JobArgs args) {
-		SHADERTYPE realVS = GetVSTYPE(RENDERPASS_MAIN, false, false, true);
-
-		PipelineStateDesc desc;
-		desc.vs = &shaders[realVS];
-		desc.ps = &shaders[PSTYPE_OBJECT_HOLOGRAM];
-
-		desc.bs = &blendStates[BSTYPE_ADDITIVE];
-		desc.rs = &rasterizers[RSTYPE_FRONT];
-		desc.dss = &depthStencils[DSSTYPE_HOLOGRAM];
-		desc.pt = PrimitiveTopology::TRIANGLELIST;
-
-		PipelineState pso;
-		device->CreatePipelineState(&desc, &pso);
-
-		CustomShader customShader;
-		customShader.name = "Hologram";
-		customShader.filterMask = FILTER_TRANSPARENT;
-		customShader.pso[RENDERPASS_MAIN] = pso;
-		RegisterCustomShader(customShader);
-		});
-
-
 	wi::jobsystem::Execute(ctx, [](wi::jobsystem::JobArgs args) {
 		PipelineStateDesc desc;
 		desc.vs = &shaders[VSTYPE_OBJECT_SIMPLE];
@@ -1722,6 +1697,37 @@ void LoadShaders()
 	};
 #endif // RTREFLECTION_WITH_RAYTRACING_PIPELINE
 
+	// Clear custom shaders (Custom shaders coming from user will need to be handled by the user in case of shader reload):
+	customShaders.clear();
+
+	// Hologram sample shader will be registered as custom shader:
+	//	It's best to register all custom shaders from the same thread, so under here
+	//	or after engine has been completely initialized
+	//	This is because RegisterCustomShader() will give out IDs in increasing order
+	//	and you can keep the order stable by ensuring they are registered in order.
+	{
+		SHADERTYPE realVS = GetVSTYPE(RENDERPASS_MAIN, false, false, true);
+
+		PipelineStateDesc desc;
+		desc.vs = &shaders[realVS];
+		desc.ps = &shaders[PSTYPE_OBJECT_HOLOGRAM];
+
+		desc.bs = &blendStates[BSTYPE_ADDITIVE];
+		desc.rs = &rasterizers[RSTYPE_FRONT];
+		desc.dss = &depthStencils[DSSTYPE_HOLOGRAM];
+		desc.pt = PrimitiveTopology::TRIANGLELIST;
+
+		PipelineState pso;
+		device->CreatePipelineState(&desc, &pso);
+
+		CustomShader customShader;
+		customShader.name = "Hologram";
+		customShader.filterMask = FILTER_TRANSPARENT;
+		customShader.pso[RENDERPASS_MAIN] = pso;
+		RegisterCustomShader(customShader);
+	}
+
+
 	wi::jobsystem::Wait(ctx);
 
 	
diff --git a/WickedEngine/wiVersion.cpp b/WickedEngine/wiVersion.cpp
index 2a1e1aecdb..d660e5de4e 100644
--- a/WickedEngine/wiVersion.cpp
+++ b/WickedEngine/wiVersion.cpp
@@ -9,7 +9,7 @@ namespace wi::version
 	// minor features, major updates, breaking compatibility changes
 	const int minor = 71;
 	// minor bug fixes, alterations, refactors, updates
-	const int revision = 500;
+	const int revision = 501;
 
 	const std::string version_string = std::to_string(major) + "." + std::to_string(minor) + "." + std::to_string(revision);
 
@@ -50,7 +50,7 @@ All contributors: https://github.com/turanszkij/WickedEngine/graphs/contributors
 
 Patreon supporters
 ---------------------------
-Nemerle, James Webb, Quifeng Jin, TheGameCreators, Joseph Goldin, Yuri, Sergey K, Yukawa Kanta, Dragon Josh, John, LurkingNinja, Bernardo Del Castillo, Invictus, Scott Hunt, Yazan Altaki, Tuan NV, Robert MacGregor, cybernescence, Alexander Dahlin, blueapples, Delhills, NI NI, Sherief, ktopoet, Justin Macklin, Cédric Fabre, TogetherTeam, Bartosz Boczula, Arne Koenig, Ivan Trajchev, nathants, Fahd Ahmed, Gabriel Jadderson, SAS_Controller, Dominik Madarász, Segfault, Mike amanfo, Dennis Brakhane, rookie, Peter Moore, therealjtgill, Nicolas Embleton, Desuuc, radino1977, Anthony Curtis, manni heck, Matthias Hölzl, Phyffer, Lucas Pinheiro, Tapkaara, gpman, Anthony Python, Gnowos, Klaus, slaughternaut, Paul Brain, Connor Greaves, Alexandr, Lee Bamber, MCAlarm MC2, Titoutan, Willow, Aldo, lokimx, K. Osterman, Nomad, ykl, Alex Krokos, Timmy, Avaflow, mat, Hexegonel Samael Michael, Joe Spataro, soru, GeniokV, Mammoth, Ignacio, datae, Jason Rice, MarsBEKET
+Nemerle, James Webb, Quifeng Jin, TheGameCreators, Joseph Goldin, Yuri, Sergey K, Yukawa Kanta, Dragon Josh, John, LurkingNinja, Bernardo Del Castillo, Invictus, Scott Hunt, Yazan Altaki, Tuan NV, Robert MacGregor, cybernescence, Alexander Dahlin, blueapples, Delhills, NI NI, Sherief, ktopoet, Justin Macklin, Cédric Fabre, TogetherTeam, Bartosz Boczula, Arne Koenig, Ivan Trajchev, nathants, Fahd Ahmed, Gabriel Jadderson, SAS_Controller, Dominik Madarász, Segfault, Mike amanfo, Dennis Brakhane, rookie, Peter Moore, therealjtgill, Nicolas Embleton, Desuuc, radino1977, Anthony Curtis, manni heck, Matthias Hölzl, Phyffer, Lucas Pinheiro, Tapkaara, gpman, Anthony Python, Gnowos, Klaus, slaughternaut, Paul Brain, Connor Greaves, Alexandr, Lee Bamber, MCAlarm MC2, Titoutan, Willow, Aldo, lokimx, K. Osterman, Nomad, ykl, Alex Krokos, Timmy, Avaflow, mat, Hexegonel Samael Michael, Joe Spataro, soru, GeniokV, Mammoth, Ignacio, datae, Jason Rice, MarsBEKET, Tim
 		)";
 
 		return credits;