Thanks for writing us . Can you please make sure that the "Fix position when scrolling" check box in PI (Property Inspector) is not checked for the object . If the issue persists even after unchecking please share us the following details
1. Browser in which you are facing this issue?
2. if possible please share us the file (Artboards which have issue ) you can send me over a private message.
3. XD version and Os version you currently working on ?