oh, sry the image doesnt show it correctly

will screenshot again

Are you able to see the "Railway Provided Variables available" text at the top of this section?

And what happens when you click on the {} icon in the input bar, doesn't it show any variables!

Yes, it works everywhere else, but in this case there are a lot of variables to fill up the screen and just the very bottom ones displays like this when there is not enough space in the viewport.

It seems to function properly but is just visually not usable. The {} also works as expected just with the same visual issue.

This was in my Arc Browser. To reproduce it you just need to add a long list of variables until it hits the bottom of the viewport.

Okay, then it seems to be a UI bug. You can post about the same in the FEEDBACK section of help-station to let the team notive & rectify it