Board Thread:Support Requests - Getting Technical/@comment-38350369-20191111175150/@comment-27958705-20191111235324

there is no background image. that means the window is too narrow. in this case right rail have to be hidden. but it doesn't, for some weird reason. it might be weird combination of desktop resolution, window size, scaling and pixel density. broken browser or broken browser cache might be the case, too.

1st (simplest) solution is: ensure that you using supported browser, then clear browser cache.