Problem with carts

Please do not mark unreleased versions as affected.
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You are using an activator rail, not a powered rail.

I know how to use rails. MY RAILS WORKED. Now they don't. My cart hobbles in place.

Then upload a screenshot of your setup.

Everything is set right. I TRAVELLED USING CARTS. IT WORKED AND I DID NOT CHANGE ANYTHING. Now I cannot. I hop into the cart . Press the button and instead of moving as before, I am thrown from the cart and it hobbles.

Left is what you used, right is what you should use.

AND I DO SEE IT. WHEN MY CART GETS THERE IT STOPS AND HOBBLES

Once again. I know how to use rail because I have been using them for months. Suddenly I cannot use my rails. Please do not lett me how to build rails because I know it. I want to know why I cannot use my rails. They used to work perfectly.

For the last time:

You are using activator rails, they are used for activating hoppers and ejecting passengers.
You need to use booster rails.

This new resourse pack make them look so similar. I mixed them up. Thank you for you help and patience.