Synced snapped cursor sometimes disappears

[senchden]

When using charts with cursor snapping to series and synchronisation between cursors, sometimes cursor can disappear. I've created a fiddle: https://jsfiddle.net/6fxdejbg/ Move the cursor in the left part of any of the two charts and observe the cursor disappear. Tested with the latest amcharts5 (5.2.47) in Chrome 108 and Firefox 108.