[visualization] addSphere is not working properly

Describe the bug

I want to mark the picking points form point picking event, so that i had use the addSphere to mark the point, if i had mark the multiple points in cloud its not working properly

Context

Add the marker using addSphere .

Expected behavior

Add the sphere shape in marker in pcl visualizer

Current Behavior

sphere shape placed in wrong places

Screenshots/Code snippets

 pcl::PointXYZRGB currentPoint;
 event.getPoint(currentPoint.x,currentPoint.y,currentPoint.z);
 std::string sphere="s0"+boost::lexical_cast<std::string>(countOne);
 pclViewer->addSphere(currentPoint,0.005,255,0,0,sphere,portOne);

Your Environment (please complete the following information):

• OS: [e.g. Ubuntu 18.04]
• Compiler: [:eg GCC 8.1]
• PCL Version [e.g. 1.10, HEAD]

Start by reproducing the issue with the provided point-picking snippet, focusing on event.getPoint and pclViewer->addSphere. Inspect how multiple picked points are passed to addSphere and compare their coordinates with the displayed markers. Done means spheres are placed at the selected points consistently when multiple points are marked.