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This is currently under investigation and it will be announced here once the issue has been resolved.
Update (27/October/2020):
The issue described has been solved at 16:15UTC on the 26/October/2020. All retrievals should be correct now, and just those retrievals performed between 13/Oct/2020 at 12UTC and 26/Oct/2020 at 16:15UTC have been affected.
13/Oct/2020
With the release of the October 2020 real-time forecast (at 12 UTC on 13th October) some additions will be introduced to the list of available forecasting systems. Specifically:
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