Report group shortcuts were getting a windows error – the reports.exe was crashing and being stopped by windows.
I seems that when you delete a report that is in a group and then run the group using a command line parameter. it causes an error. Solution: open the group and change something and Save it – then change it back and save again. Then try to run it – it shoould be fixed. (Re-write the group file to the GRP folder).
The grouops are save with report FILE NAMES, not the actual report names. When you delete a report it does not update the report group file.