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Werk #19095: Fix internal error when opening GUI design customization

Component Setup
Title Fix internal error when opening GUI design customization
Date Mar 16, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.6.0b1
Not yet released
Checkmk Ultimate MT
2.5.0b1
Not yet released
Checkmk Ultimate MT
2.4.0p25
Not yet released
Checkmk Ultimate MT

Previously, navigating to "Global settings" - "GUI design" - "Customize" caused an internal error. This has been fixed.

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