When a location group is created from the current grid not all of the locations listed are included.
A bug exists in the current version of HoleBASE SI (1.30.1.12) which means only the locations listed on the first page are submitted to the location group. Typically, the number of locations which can be submitted to a Location Group for a system using the default settings is therefore 50. However, the following provides a workaround.
As all the locations listed on the first page are submitted to the Location Group increasing the number of lines on grid page therefore allows more locations to be submitted. From within a project go to 'Preferences | Settings | Grids' and increase the 'Number of Grid Rows' drop down:
This issue is currently in development and will be resolved in the next major release of HBSI.