The message "()" appears after submitting a data change transaction via transaction services in Strategy Web 9.4.1. The same document works normally in Mobile.
Below record is found from DSSErrors log:
[HOST:WIN-TTEA8210R0H][PID:3392][THR:2144][Kernel][Error] XMLRebuildDocument: PreRebuildDocument failed with error -2147217383, return original Message ID 7D71AB1E4104718EB8B9C19236388BBE
Internal error occurs to the submit button.
Remove the submit button and recreate a new one.