The above is a screenshot of the underground 1-way subway I am creating in Minecraft survival 1.8.8.
In the situation in the image above, when I try to ride the minecart, the minecart shakes and ejects me instead of moving forward. It should be noted that the shaking also occurs when the block behind the minecart is removed.
What is going on here, and how do I fix it? Thank you.