You might see an error like:
Failed to download mobile app: storage:adc39ea3-f992-451b-825e-8802f1b6b8ad; The storage authorization is not possible due to the missing token
This is seen when using our Application Storage feature (link).
This is most likely happens when using the incorrect OnDemand endpoint for our us-west-1 data center.
Make sure you are using the OnDemand endpoint ondemand.us-west-1.saucelabs.com instead of ondemand.saucelabs.com