Please accept my sincere apology for the inconvenience. Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.
An error occurred while saving the commentAnonymous commented
I found a workaround for this, set the artboard size to your desired need and resize group using handles using artboard as a guide. My drawings wouldn't scale by percentage but will do via that method.