When executing a Rest Endpoint service based SmartObject that contains nullable return types, a temporary dll file is created in the Host Server\Bin directory for each execution. The temporary files are not removed after the completion of the call.
- Ensure you have K2 4.7 installed.
- Download and Install the K2 4.7 March 2018 Cumulative Update from K2 Partner and Customer Portal.
- Get the K2 4.7 March 2018 Cumulative Update FP11 from Regional Support.
- Install the K2 4.7 March 2018 Cumulative Update FP11 to apply the fix.