Can you make a bus disappear?

WMATA sure can. Today I checked my phone and the nifty WMATA website said that the H1 bus would be coming in 8 minutes. I watched the timing go down all the way to 4 minutes as I walked to the bus stop, and then suddenly then next next bus wasn't expected for another 27 minutes. Say what? How does a bus that you are tracking with GPS suddenly fall off the grid? So I waited another few minutes in the hope that it would reappear, which of course it didn't. Then, to add a cherry on top of the incompetence that is metro, I saw an H1 bus going south on 23rd street. Um, the H1 only goes south on 23rd during morning rush, and it goes north in the evening rush, so WTF. Just when I think metro can't fail anymore, they manage to top themselves.