[2.0.16][mac x64] trains stop instantly when switching from maunual to automatic

[its a me]

when i was inside a train with 1 locomotive 4 mostly full of oil fluid wagons, then while moving switched from manual to automatic the train instantly came to a stop and started accelerating again. This also happened the second time i tried it

[robot256]

AFAIK this is intentional. When the train is switched to Automatic while in motion, for one tick it has no path. Trains with no path will stop instantly to avoid running signals and going the wrong direction. Also so that the path can be determined from a fixed point rather than a moving target. Then after 1 tick stationary, it finds a valid path and starts moving automatically.