Problem with ASUS ROG Strix xg248q

When I load a saved profile with ELMB enabled twice in a row, the colors change. They become brighter and more contrasting. Light stripes, for example, become invisible against a light background. https://essaywriter.fun/ Also in the profile, the brightness and contrast are set to 100, saturation 45, FPS mode. The same problem if using this profile with ELMB, enable and then disable ASCR. ASUS told me to take it to a service center for diagnostics. But it seems to me that this may not be an isolated case, but the norm for this monitor.
Who owns this monitor, please do a quick test for the same problem and write here.