To reproduce, build the setup shown in the first attached screenshot and place a powered rail on the iron block.
To reproduce, build the setup shown in the first attached screenshot and place a powered rail on the iron block.
Confirmed
Minecraft 17w48a, Minecraft 17w49a, Minecraft 18w01a, Minecraft 18w11a
Minecraft 1.13-pre1
Retrieved
added simpler case, just with one rail. Seems like rails either reorient or change power, but not both.