This is not my project, but colleagues told me it happens after turn off/on of the machine. There are two types of elements used there Forms.GraphicLayer.PictureShape (I do not know, why they did not used Mod_PictureBox) and Mod_TransparentArea that overlaps them. I will try to find more datails later. Similar issue happens to my project with clickable areas. This is picture after cold reset of PLC. It draws some weird lines over areas.
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