I personally, don’t think it’s a bug at all.
I spoke to a lovely lady on the chat feature last weekend who advised that they have changed the way they track applications due to the back log and that it can take 5-10 weeks from the point of documents received date to be processed. Not despatched, approved etc just processed. (Mine was previously in processing) and she also advised it hasn’t even been looked at by an examiner, so if you were previously in processing, I would assume your application currently hasn’t even been looked at. I am past the five week mark now (since documents have been received) and was told that there was nothing I could do to speed up the process as it’s a first passport, I asked if my travel date (just before summer holidays) was likely and she pretty much told me not a chance in hell. When it gets to 10 weeks since documents approved I can get back in touch to speed up the process but until then. f***ed, basically.