Items appearing twice on To-Do app and Microsoft Launcher

Hi all,

I was hoping that someone may be able to help me out with a problem that I'm having. For some strange reason items are appearing twice in the Microsoft To-Do app and the Microsoft Launcher on my Duo 2. Everything is fine when I launch To-Do on my Surface Pro X. I was wondering whether anyone ebe has experienced this, or has any suggestions?

Thanks in advance