How to remove the error icon for correct ST-code?
If you enter and save a faulty ST-code, the ST-code is highlighted as faulty and the icon is displayed on the left edge. Usually this highlighting and the error icon are removed right after the faulty ST-code has been corrected. However, it is possible that the highlighting and the error icon are not removed in case of certain scenarios.
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Workaround: Save the corrected ST-code so that the highlighting and the icon are removed.