NULL query_plan value from DMV's.

Greetings. Im attempting to get the exec plan from a sproc that occasionally needs to be recompiled. However, as described in this article I'm unable to produce it, and a NULL is returned. 

So I take the PowerShell method outlined in the article. It works for every other sproc I try, but for the sproc in question an empty file is output. 

One interesting fun fact about this sproc is that the query below returns two values, each with a unique plan_handle value. Not sure that's the cause of my issue, but thought it worth mentioning. 

So, does anyone know how I can get this plan?

SELECT * FROM sys.dm_exec_procedure_stats ps
    JOIN sys.objects o on ps.object_id = o.object_id
WHERE o.name = 'mySproc'

TIA, ChrisRDBA