Hi Bart,
Our live update script tries to detect test/staging/dev environments, so the updates are seamingless. It works the best in cases where the staging and test domains are on the dev./staging./test. subdomains.
I am not sure what is the Evnato option in this case, I guess it is a 3rd party plugin? If so, then it is out of our control.
I recommend using our built in automatic update feature instead. For live/test/staging environments I recommend checking this documentation as well, it explains a lot.