# After editing a diagram, the attachment shows me as the author and today's date, and the old version

**What you are seeing**

After editing a diagram, the attachment shows me as the author and today's date, and the old version is gone.

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## Why it happens

The attachment id, author and created date all change, and the issue's attachment history shows a delete plus an add rather than a new version.

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## What to do

If you need history, download and keep a copy of the attachment before editing. There is no roll-back inside the app.

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## Settings involved

| **Setting**                              | **Where** | **What it does** |
| ---------------------------------------- | --------- | ---------------- |
| Admin / project / site settings          | \-        | \-               |
| Diagram (gadget configuration). Diagram  | \-        | \-               |
| Diagram (gadget configuration). Language | \-        | \-               |

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## Limits that apply here

| **Limit**                                    | **Value** | **What happens**                                                                                                                                                                                         |
| -------------------------------------------- | --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Diagram title length                         | \-        | The Title input is capped at 50 characters. Titles are used verbatim as attachment filenames with no de-duplication or sanitisation, so two diagrams with the same title produce two identically named a |
| Browse page size                             | \-        | Each JQL page requests 12 issues and the list reveals 12 rows at a time; Show more loads the next batch. (The shared hook's own default is 50; the Diagrams page overrides it to 12.).                   |
| Concurrent diagram previews on the browse pa | \-        | Diagram content is downloaded one attachment at a time through a throttle, so thumbnails on a busy site fill in progressively rather than all at once.                                                   |

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## Related

[Add, Edit or Delete buttons are visible but clicking them does nothingThe permission check treats anything other than an explicit permission denial. Including a](https://help.gocapable.com/jira-diagrams/add-edit-or-delete-buttons-are-visible-but-clicking-them-does-nothing.html)

[Issue shows on the Diagrams browse page but the issue panel and the count badge show nothing (or theTwo different definitions of "is this attachment a diagram" are in use. The search index a](https://help.gocapable.com/jira-diagrams/issue-shows-on-the-diagrams-browse-page-but-the-issue-panel-and-the-count-badge-show-nothing-or-the.html)

[Everything elseThe rest of this family.](https://help.gocapable.com/jira-diagrams/everything-else.html)

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_Found it? Good._