Intermittently the data from the power shell instance is blank

[PmoriartyPhoenix]

Intermittently but frequently, I get back an empty string from node-power shell in the then of the promise when the console shows it received data. Rerunning of the command on a new shell instance returns the data.

This is most previlant when I pool and reuse powershell instances, but I can also see this behavior on freshly spawned instances of the shell object.

Any ideas how to get around this and get a reliable return?

Test powershell command is ls | convert-to-json -compress. (Large file set)

Also have bluebird overwriting my Promise object. Node 6.9.1 windows 10

[mattflix]

Note that issue #26 may be related.