The jerky movements occurring when bars are being shown or hidden cause disorientation. We should consider using (fast) transitions when bars show up or hide again.

During user tests, this could be clearly observed in cases where many bars appeared or disappeared at once. While users clearly stated they prefer not to see all bars at once and instead only wanted to see the bars of the regions they're interested in and thus clicked on, they labelled the jerky movements to be "distracting" and "disorienting" sometimes.