Found out that you need to use an older version of OpenBVE on Windows 10 as newer versions have loading errors for the Jubilee Line stock

Version 1.7.0.3 is needed. (The latest version is 1.8.1.0)

Now Jubilee Line stock works properly. And the Central Line seems to work too.

I just found out that if you turn off joystick mode, the little tab at the bottom left that shows current braking/accelaration disappears. Leave it turned on!