I have a PB12.5.2 datawindow, which has a nested datawindow in a trailer. For specific data, doing a getfullstate on this datawindow crashes the application, either in the executable or the IDE. Replacing the getfullstate / setfullstate pair with rowscopy works (though obviously in not quite the same way). For this data, the nested datawindow would be empty. I have inspected the exported syntax of both of these datawindows and both appear fine. Exporting as Excel works, but exporting as PSR crashes the application. Removing the nested datawindow cures the problem, but also removes required functionality. In any case the client will not accept a coding change but wants an explanation as to why particular data consistently crashes this report. I have exported samples of data for working and non-working datasets, but they do not appear significantly different.
Could anybody suggest a likely cause?