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Actually they promised an update that would fix this very problem would be released in a month...4 months ago
go and check the status update from 09/06/14
and I hate to complain
but the review process does not take over a month let alone 3
why does it have to be through the AppStore anyways? It wouldn't be the first time they required you to download an update from the internet instead of the appstore
both for this app and others.
what the problem probably is is that YouTube must've changed something so they had to figure out the entire code all over again
or YouTube is intentionally trying to block this app (and others) from working
but that's just a theory