Scrollbar width doesn't change


I’ve used this to alter the scrollbar width:

.scrollbars-visible-always {
  /deep/ ::-webkit-scrollbar {
    width: 30px;
    height: 30px;

And while that does change the appearance of the scrollbars, I can still only interact with them from about half way.

At halfway or so, the mouse changes from a cursor to a pointer and then I can click the scrollbar. Note: this isn’t the case for the scrollbar in the left-hand pane (the one where you browse and select files) for some reason.

EDIT: just checked and after restarting Atom the behaviour is as expected. So this is something weird that happens after using Atom for a while.