Designer crashes when saving java agents

Any time I attempt to save a Java agent in designer, it crashes and writes out the following in the NSD file:

ERROR (48): couldn’t access shared memory key ‘IRIS$MEM$194$0$C.Lotus.Notes.Data’ - (22) Invalid argument

I have tried uninstalling and re-installing designer, however that didn’t help. Anyone have any ideas?

Thanks in advance.