It would appear that there is a problem with some (but not all) Android devices / browsers in bootstrapping Aikau pages. This was originally reported via Twitter (see https://twitter.com/deas/status/796822298644905984) and then reported as an Aikau issue (see https://github.com/Alfresco/Aikau/issues/1289)
Having looked into the problem I can see that the problem is in the dojo-bootstrap.get.html.ftl and dojo-bootstrap.get.json.ftl files where the code is written to assume that if the navigators.languages attribute is set then it must have an entry, i.e:
We need to improve the defensive coding here. I have added a request on the Aikau issue for more specific information on which Android based browsers this problem occurs on in order to assist with testing and verification of the fix.