Timeline object is currently based on tables data that is not part of the store of the board.
The Timeline is not supporting version restoration, so when you apply changges to a Timeline object, you are in risk of any edition could not be restored.
In addition, what is a high risk: the timeline object has a sync function that allows to keep some data syncro between boards.
Timeline object is not having detailed information about what boards will be affected, and you have not option to evaluate the impact of your changes.
When you try to restore a board version affected you are completly limited by this risk and impacted. This is not the expected quality of a tool like Miro.
