Null sessionToken returned in mobileDeviceLoginSucceeded

[motohead400]

I also created submitted this issue via contact us, but we have site that mutiple companies use, each with their own credentials.  We went live with version 1.9.5 of the Auth.NET .NET SDK today and have had 4 instances of controller.GetApiResponse() returning null--two times for two different companies.  There have been many other transactions that went through fine with no issues.  Why would we occasionally get a null response on this call?

[motohead400]

I'm not sure why my title got changed on this, but this is a major issue.  We have had over 100 instances of this happen now.  If an error is occurring or something, null is not an acceptible error message.