Trouble with instrumenting a module

Hi, I've been trying to instrument a module in my codebase as per the SystemView user manual (UM08027).
It's on a baremetal application, which based from SEGGER materials, SystemView should support.

Ok, so far, I have done the following:

0. Configure SystemView in post mortem mode:

#define SEGGER_SYSVIEW_POST_MORTEM_MODE 1
#define SEGGER_SYSVIEW_RTT_BUFFER_SIZE 0x20000
#define SEGGER_SYSVIEW_SYNC_PERIOD_SHIFT 8192 // 0x20000/16

1. Call the following functions after MCU and BSP related init

SEGGER_SYSVIEW_Conf();
SEGGER_SYSVIEW_RegisterModule(&MyModule);
SEGGER_SYSVIEW_Start();

MyModule is defined as:

SEGGER_SYSVIEW_MODULE MyModule =
{
  "M=MyModule, 0 ISR Reg=%u",
  1, // NumEvents
  0, // EventOffset, Set by SEGGER_SYSVIEW_RegisterModule()
  NULL, // pfSendModuleDesc, NULL: No additional module description
  NULL, // pNext, Set by SEGGER_SYSVIEW_RegisterModule()
};

2. On a certain ISR handler, call:

SEGGER_SYSVIEW_RecordEnterISR();
...
// reg points to some register
SEGGER_SYSVIEW_RecordU32(0 + MyModule.EventOffset, *reg);
...
SEGGER_SYSVIEW_RecordExitISR();

Now, in the SystemView host, I expected the register values to be printed on the timeline. Instead, I get this:

The ISR is captured fine, but the module events just displays Function #512, without the data displayed as specitied in the module description. Are there other things to be done besides the steps I did above?

One more thing, the initial pop-up window also says 0 modules.