We are really sorry about this issue, in order to help you to solve it as quickly as possible
- Please try to use the option "save as copy"
- if it doesn't work, please check your internet access
- When you contact the support, can you add the following information in your request:
- Is it a new or existing diagram?
- Are you working on the latest revision?
- Is this diagram has been restored?
- Is this diagram published or unpublished from the Collaboration Hub?
- Are you working alone on this diagram? Or other people are working on it at same time?