Reproduction steps:

1. Open "UnityRemoteSettingsTest.zip" project
2. "Window" -> "Unity Analytics" -> "Remote Settings"
3. Pin the "Remote Settings" window next to the "Inspector" window (like in "sc1.png")
4. Insert the Projects Secret Key -> "Next"
5. Select the "Inspector" window
6. Exit Unity
7. Open the project again
8. Enter Play mode

Expected Result: Play mode should start without any errors
Actual Result: "NullReferenceException ...RemoteSettings/RemoteSettingsManager.cs:339)" is thrown (like in "sc2.png")

Fixed in "Unity Analytics Remote Settings" version: 0.1.6

Reproduced with: 2017.3.0a3, 2017.2.0b7, 2017.1.0p3, 5.6.3f1, 5.5.4p2

Note:
Reproduced both with Mac OS 10.12.5 and Windows 10