Jprofiler object allocation time is empty, even when “Record object allocation times” is checked

I am trying to analyze a memory leak with jprofiler.

I have checked “Record object allocation times” in the settings when starting the profiling session.

But the object allocation times in the References view of the Heap walker are shown as n/a. Also, the Time view of the Heal walker is empty.

I have checked with both Instrumentation and Full profiling modes, but the issue is there in both modes.

What could be the reason for this?