Hi Daniel,
Can you check what version of the Sandbox you are using? In the last couple of updates we have included a sandbox-version command you can run which should tell you what version you are using. Using the console on the VM or a terminal, after logging in, can you execute:
sandbox-version
and provide the output, you should get something similar to:
Sandbox information:
Created on: 27_10_2015_13_22_00 for virtualbox
Hadoop stack version: Hadoop 2.7.1.2.3.2.0-2950
Ambari Version: 2.1.2
Ambari Hash: 0ef0b7b62cf14eaaff3c5c3f416253f568f323f9
Ambari build: Release : 377
OS Version: CentOS release 6.7 (Final)