I found when it’s owner predicted ghost, position of LocalTranform data has jitter issue that I use the LocalTranform.Position from the ghost make some UI to follow the ghost every frame but the UI will have serious jitter issue when the ghost is moving. But if it’s interpolated ghost, the UI has no jitter issue.
Are you sure you are not mispredicting badly on the client? Also, is the ghost using physics with either interpolation or extrapolation active?
In general for UI and Camera I would recommend not to use the LocalTranform.Position but the LocalToWorld matrix (the position), because it is more accurately respect the position of the object on screen.
Can you post a gif or a short video that show the problem?