Buses that disappear from predictions API

@harry This sounds 100% like the 97 going Northwards from Stratford City when I used to try and catch it.

Keep up the good work!

OK, lets look each minute at the predictions for Stop 4 (GA, 490005183E): Balgonie Road
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Where did SN63JVZ go?

Its vehicle prediction showed it as arriving at stop 4 at 09:10:49

But then no more:
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until 09:12:11:

OK, so it’s now showing as being a couple of minutes later than previously expected.
But what happened between 09:04 and 09:12 to make the API think it should be telling everybody that this bus would not arrive at all?

That’s exactly the same as the 97 problem.

And it’s repeated with LX11BGU:
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which disappears 1 minute later:
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as does LX61DAA a couple of minutes later:
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Then a new bus appears, but it’s not apparently coming for 27 minutes (despite this being a regular 7 minute service)
That’s still the only bus showing at 09:21:
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when suddenly BGU reappears, with 0 minutes notice:
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That’s not much help if you live 2 minutes from that bus stop, but were told there would be no bus for 25 minutes. It’s coming only a few seconds later than originally predicted ten minutes earler. But again, we need to find out why the API thought from 09:12 to 09:21 that it would not be coming at all.

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