Gizmos rendered over ButtonBehavior are not responding to input

[Silveryard]

Hi,

I encountered a small problem regarding mouse input when rendering manipluate gizmos over other UI elements that react to mouse input.

I am rendering an invisible ButtonBehavior over the scene view to capture mouse inputs for things like object picking and camera movement. The overlay buttons in the top left are still working correctly (due to ImGuiButtonFlags_AllowItemOverlap) but the manipulate gizmos are not. When the ButtonBehavior is present they only react correctly when hovering them but you cannot actually manipulate the object.

const ImRect textureRect = ImGui::GetCurrentWindow()->InnerClipRect;
ImGui::GetBackgroundDrawList()->AddImage(textureId, textureRect.Min, textureRect.Max);

const ImRect rect = ImGui::GetCurrentWindow()->InnerClipRect;
const ImGuiID id = ImGui::GetCurrentWindow()->GetID("SceneViewButton");
ImGui::ItemAdd(rect, id);
ImGui::ButtonBehavior(rect, id, nullptr, nullptr, ImGuiButtonFlags_PressedOnClick | ImGuiButtonFlags_AllowItemOverlap | ImGuiButtonFlags_MouseButtonMask_);
ImGui::SetItemAllowOverlap();
                
ImGuizmo::SetDrawlist();

const glm::uvec2 position = EditorGui::GetWindowPosition();
const glm::uvec2 size = EditorGui::GetWindowSize();
ImGuizmo::SetRect(static_cast<float>(position.x), static_cast<float>(position.y), 
                    static_cast<float>(size.x), static_cast<float>(size.y));

//ImGuizmo::Manipulate calls follow here