OneDrive's web app won't display account B's files while account A is logged in to its desktop app

I'm logged in to OneDrive's Windows 10 application with my personal account A.

If, at the same time, I log in to OneDrive's web application using a completely different account B, the web application incorrectly displays an empty directory instead of account B's existing files and folders.

• I confirmed there were no JavaScript errors
• Switching to private browsing mode doesn't make a difference
• The issue exists in both Chrome and Edge

Is the Windows 10 application triggering this issue in the web application?