I'm french, so i'm sorry if my english is not perfect !
First of all, i discovered EvoThings Workbench this week and i think it's a fantastic tool

I realised a lot of tests on different devices, and especially with your "estimote-scan" example.
It was a very big pleasure until i update my Nexus 5 to lollipop (android 5.0.1).
There seems to be an incompatibility with this system, if i open your example with my EvoThings Client i have an EvoThing error and my application closes with this message "Evothings stopped !".
Have you the same problem ? And so, have you a solution ? (i tried also on Galaxy Note II with the same OS and it works perfectly ...).