the new version ( v10.18) really make me confusion, i don’t know why my collectons are gone，and the new UI can’t switch to the offline view. for me postman is a small and beautiful tool worth paying for, but I really don’t need a workspace online or on cloud.
if you are finding the old version with offline mode, you can download it by this link:
https://dl.pstmn.io/download/{THIS IS THE VERSION NUM}/win64
Hey @postvipman 
Welcome to the Postman community! 
You can use the Lightweight API Client offline to send HTTP, WebSocket, gRPC, and GraphQL requests to test your APIs.
All of your work in the lightweight API Client is stored locally and isn’t synced online with Postman.
You can read more about that here:
Your data can be Exported from the Lightweight API Client using ⚙️ > Settings > Data > Export. However, you would need to be signed in to Import this into Postman.
Alternatively, once signed in, you can Migrate all your Scratchpad data into a new Workspace using ⚙️ > Settings > Data > Migrate data.