HMI momentry button got freeze without click and gives signal as '1' always.

Problem was resolved by rebuild and download the program backup.

Often issue was occurring.

Touch panel calibration done as a action. But no improvement.

Hi AutoGen_7661683,

In this case I would also recommend performing a reset of the panel to factory settings: "How do you do a SIMATIC HMI operating system update (firmware update, OS update) on operator panels or perform a "Reset to factory settings"?"

I would also check that you have the latest update of the TIA Portal version installed, that you comply with the limitations of the panel ("SIMATIC HMI HMI devices Comfort Panels: Scope of functions with WinCC") and see if the same thing happens to you with a new project.

Best regards!