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.

[martynasma]

It disappears because it tries to snap to the data item on the left that is slightly out of view.

It's not super critical, and changing snapping algo like that would require fuzzy logic, which we are trying to avoid.

I'm afraid we won't be able to fix this.