why is the Synchronizer synchronizing the left and right images,I don't want that, I want to just sync the stackIndex

[zhengdechang1]

why is the Synchronizer synchronizing the left and right images,I don't want that, I want to just sync the stackIndex,and wwwcSynchronizer also。

You can see that the left side is replaced by the right side. Why is that

my Code

`cornerState.WWWCSynchronizer = new cornerstoneTools.Synchronizer(
'cornerstoneimagerendered',
cornerstoneTools.wwwcSynchronizer
)

cornerState.scrollSynchronizer = new cornerstoneTools.Synchronizer(
  'cornerstonetoolsstackscroll',
  cornerstoneTools.stackImageIndexSynchronizer
)

//loading image
const loadImage = (element, stack) => {
return cornerstone.loadAndCacheImage(stack.imageIds[0]).then((image) => {
cornerstone.displayImage(element, image)
cornerState.WWWCSynchronizer.add(element)
cornerState.scrollSynchronizer.add(element)
cornerstoneTools.addStackStateManager(element, ['stack', 'Wwwc'])
cornerstoneTools.addToolState(element, 'stack', stack)
})
}
`

Is there any way to solve it?