Hello,
This issue does not reproduce with the latest Q4 2025 version (2025.4.1111) of the Telerik UI for WinForms.
This is why I will close this item and set its status to "Declined" on our feedback portal. Please upgrade to the latest version to take advantage of the improvements in the RadButton.
If you have any other questions or concerns, please let me know. Thank you!
Regards,
Nadya | Tech Support Engineer
Progress Telerik
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