Slow processing on Mobile Devices loaction (Nexus 7, iPhone 5C)

[icrossing]

We are trying to execute some tests on Nexus 7 since yesterday without success.
Our yesterday's attempts to execute tests on Nexus 7 ended up with the result:
"The test completed but there were no successful results." displaying "Test Data Missing" in both First view and Repeat View.

This night we've placed several tests in the queue 5 hours ago. At that time the status was “Waiting behind 56 other tests”. At the moment our first queued test shows “Waiting behind 30 other tests”.

Starting page indicates 14 pending tests for "Nexus 7 - Chrome" and 60 pending tests for iPhone 5c.