Breakpoint in ISR does not allow single stepping with XDS110 debugger

I am running an application on the simplelink evaluation board MSP-EXDP432E401Y with the XDS110 debugger that is integrated into the eval board.  When I insert a breakpoint into an ISR the break happens but I am unable to do anything but hit run again.  There is no single stepping capability.  Single stepping works fine outside the ISR.  Is there a compiler setting that should be set?

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