Sorry for not replying earlier, we're in the preparation of the next release and the situation is hectic.
Anyways, I drilled down some more into the location module today and indeed, there are a bug in the location module for ios 7.1 and a change in ios 8 that stop the module at all.
I hope this is not as critical for you. We are preparing a fix, which will be available with the next official release.
If urgent, I can send you a package with the fix for ios8. Note that it will only have passed automatic tests, no full QA testing passed.
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