The "Cannot upload application" error is caused by a timeout on our side. It started occurring only recently as explained in an earlier reply to this thread. However, from your report it appears that the binary upload is passing through since it was in the "Upload Received" state.
Unfortunately, we cannot tell why the Apple team has not yet began reviewing your app. After AppBuilder assists you in uploading the binary, it has no control whatsoever on the Apple team. If your binary is in the Upload Received state, the Apple team will eventually get to reviewing your app. At this point they will change the state of your app. If for some reason your app is rejected, they will notify you and provide details about their decision. This, however, depends in no way on AppBuilder.
Thank you for using AppBuilder.
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