You can now change resolution without any apparent bugs.

src/Engine/Rendering/PickingPass.cpp

@@ -15,6 +15,8 @@ PickingPass::~PickingPass()
 
 }
 
+
+
 void PickingPass::InitializeTextures()
 {
     GenerateTexture(&m_PickingTexture, GL_CLAMP_TO_BORDER, GL_LINEAR,
@@ -365,6 +367,13 @@ void PickingPass::ClearPicking()
     m_PickingBuffer.Unbind();
 }
 
+
+void PickingPass::OnWindowResize()
+{
+    InitializeTextures();
+    InitializeFrameBuffers();
+}
+
 PickData PickingPass::Pick(glm::vec2 screenCoord)
 {
     int fbWidth;