Hi,
this is highly unusual with regard to the ControlRoom Presets.
Can you please try to do this:
First, delete the controlroomPreset.pxml while Cubase is closed. From here on please follow the instructions provided in the link below very closely. It is key to watch out for sentences which close with “(important)”.
For now, please don’t use the “Import” and “Export” functions in the Plugin Manager but just copy the file like described here: