Stored bookmarks getting lost

Steps to reproduce

During the past week I have created new book marks and used it frequently. But after one or two days the bookmarks disappeared. I thought that this may be some syncing issue and again created the same. Today, the same is again missing.

I am using Windows 10 operating system.
Normally uses desktop app. Also open dynalist in Google Chrome for tabbed browsing.
The above mentioned bookmarks are created through desktop app

Request you to please identify the issue and rectify the same