Pivot Lines disappear when zooming in to chart

Good morning,

I have noticed that when zooming in, on the 5 min chart, the pivot lines disappear. It happens on 40% zoom and onwards. This needs to be fixed asap please, as I need to be able to see the pivot lines when looking at multiple charts on a single screen and zooming in. I have attached screenshots of the chart with 20% zoom and 40 % zoom. Thank you very much. Roan