Agreed, frequently use key combination, especially so when magnified and dropping points/objects. Having the same issue with spacebar pan tool activation when other applications running. A restart, followed by only running VW temporarily solves issue on Mac OS 10.13.6 (17G9016). VW may also want to look into issues with files properly displaying/rendering sheet and design layer information following the opening of a file using file menu and navigating to file. Appears to not happen when opening file directly from finder