# Diagrams page is empty and every surface shows a "License Not Found" or "License expired" banner **What you are seeing** The Diagrams page is empty and every surface shows a "License Not Found" or "License expired" banner. --- ## Why it happens Licensing is enforced in production. With no licence the app is replaced by the banner, and separately Jira stops delivering attachment events to the app, so the search index also stops updating. --- ## What to do Check the subscription at Jira → Apps → Manage apps. A fresh install can take a few minutes to activate. Be aware that after a licence is restored the browse page stays stale for previously changed issues until each one sees another attachment change. --- ## Settings involved | **Setting** | **Where** | **What it does** | | ---------------------------------------- | --------- | ---------------- | | Admin / project / site settings | \- | \- | | Diagram (gadget configuration). Diagram | \- | \- | | Diagram (gadget configuration). Language | \- | \- | --- ## 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. | --- ## Related [After fixing an expired licence, the Diagrams page still shows old or missing entriesWhile the licence was inactive, attachment events were dropped before the app was ever inv](https://help.gocapable.com/jira-diagrams/after-fixing-an-expired-licence-the-diagrams-page-still-shows-old-or-missing-entries.html) [TikZ is missing from the diagram type picker and there is no way to turn it onTikZ is off by default in the picker's default list, and the Jira edition has no settings ](https://help.gocapable.com/jira-diagrams/tikz-is-missing-from-the-diagram-type-picker-and-there-is-no-way-to-turn-it-on.html) [Something is missing or looks wrongThe rest of this family.](https://help.gocapable.com/jira-diagrams/something-is-missing-or-looks-wrong.html) --- _Found it? Good._