After adding a new version with a description, we don’t see any description in Sketch Cloud.
Sketch 97
Hey Vitaly 
!
We appreciate you bringing this matter to our attention. Our tests have shown that further technical support is required to resolve the issue. To maintain your privacy on this public forum, kindly send an email to productsupport@sketch.com with the URL link of the document.
Rest assured, we will do our utmost to assist you through this channel. Your cooperation is greatly appreciated.
It works for us.