I can confirm this issue as well. Very annoying and it basically breaks every red Stone contraption built with minecarts in the design.
After searching for an hour, I noticed someone posted the same issue a couple days ago.
https://bugs.mojang.com/browse/MCPE-59302
This issue never existed until the 1.13 update. I know this because I, like so many others, had Redstone creations that utilized side by side idle minecarts. After the update these all started breaking and have been this way ever since.