Don't know if this one has been reported but 6891 appears to have been stuck tracking as the 05:51 X21 recently.
Today it looks like it actually did and X12 journey? Though not too familiar with that route.
https://bustimes.org/vehicles/tnxb-6891#journeys/579564818
Today it looks like it actually did and X12 journey? Though not too familiar with that route.
https://bustimes.org/vehicles/tnxb-6891#journeys/579564818