Steps to reproduce:

• Create a project
• type 'sphere' to search box in Item Library
• Right click Sphere component in All Other Components section and select "Import module: QtQuick3d"
• ->QtQuick3D section is created but empty, navigator shows error "found not working imports..."
• Import statement in text editor is "import QtQuick3D 1.0".
• When adding QtQuick3D from list of modules, or by dragging and dropping component from all other components to navigator, I get import statement "import QtQuick3D 1.15" that is working.