After a station stop, when the doors are closed, the BR143 hud does not show any traction lock in the hud. If you apply power, traction lock status is shown. This is not correct and annoying! Second, the brakes do not release when you put them in Running position, but you need to hold them in release position till the brakes are fully released. Then the traction lock is removed and you can continue. Since all this is undocumented, I cannot say which behaviour would be correct. See also pics below, showing the what is going on. I used the Back and there again scenario to discover the issue.
Not correct. The brakes release in running as they should. If they don‘t do that for you, it‘s because you applied the brakes after you put the brake handle into release since you‘re then applying brakes with an overcharged brake pipe. Make sure you‘re not using the release position and the brake pipe is at or below 5.0-5.1 bar when applying brakes.