Werk #22814: Dashboards: Open dashboards with widgets of an unknown type

Component

User interface

Title

Dashboards: Open dashboards with widgets of an unknown type

Date

Oct 21, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p18 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Opening a dashboard failed with an error if it contained a widget of a type that this site does not provide, for example one added by an extension package that has since been removed. The error named the widget type, such as KeyError: 'notification_analysis'.

The dashboard now opens without that widget. The REST API returns such a widget with the content type not_supported.

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