Werk #19990: Fixed crash from invalid custom icon configuration
| Component | User interface | ||||
| Title | Fixed crash from invalid custom icon configuration | ||||
| Date | Jun 23, 2026 | ||||
| Level | Trivial Change | ||||
| Class | Bug Fix | ||||
| Compatibility | Compatible - no manual interaction needed | ||||
| Checkmk versions & editions |
|
Previously, if the Custom icons and actions global setting contained an icon value that was not a text name - for example an unset value - the GUI crashed when that icon was rendered.
Such invalid icon values now degrade gracefully to a "missing" icon placeholder instead of crashing the page. An invalid emblem value is likewise ignored rather than causing a crash.
When you update Checkmk, these non-text icon values are additionally rewritten to the missing icon, so the stored configuration is clean. Configured icon names are never changed: even a name that does not resolve today is kept, so the icon displays correctly again as soon as its icon file is added. No action is required on your part.