[dev] OTRS Ajax/JSON Issues

I am running OTRS 3.2.7 and have a beta system running at the same time. A while back, I ran into an issue on the live system where, when a user selects an item from a dynamic field drop down list, an Ajax communications error is generated. This does not happen on the beta system on the same virtual machine. It appears to be related to the following call in AgentTicketProcess.pm but is endemic through the entire live system (only with drop down lists and multiselect boxes); my $JSON = $Self->{LayoutObject}->BuildSelectionJSON( [@JSONCollector] ); Any advice would be appreciated. Thanks…Dan.