Sorry to hear you are having issues. Not really sure what you're seeing on your screen and what you're comparing with. Please post few screenshot or a video showing us your issue. This could help us understand your issue better.
As for taskbar moving on Windows 10. No, there is no issue on those for Start10 on Windows 10. I can move the taskbar to all four corners without any problem.
Also provide us on your Windows version, full version number please. And Start10 version you have installed.
Stardock Community Assistant.