How do I contact Twine support? One of my stories is missing/got deleted etc.
There isn’t formal Tech Support for Twine, but this forum is a good place to start.
Per the Twine cookbook:
Stories are saved in the local storage of a web browser. This is isolated between a browser and its use of incognito or private windows. Clearing sessions and cookies in a browser may also clear the storage of Twine 2. Using a different browser also means accessing different local storage.
If you’ve changed browsers/computers, you might need to check in the same one for saved material. If you’ve cleared cookies and cache …
For the desktop app:
When used as a desktop application, Twine 2 stores its files under the current user’s files. The current collection of Stories can be accessed through the View → Show Story Library menu option.