Thanks for reaching out. Please share a few more details like:
I use the latest version, and all new files are the same problem local and cloud and it happens with multiple files and I lose my work every day .. what shall I do ???
Sorry for the delay in response and thanks for sharing the asked information. Would you mind trying the steps suggested in this article:https://helpx.adobe.com/xd/user-guide.html/xd/kb/fix-issues-with-xd-cloud-documents.ug.html?
Let us know if that helps.