[amibroker] High CPU usage when moving coursor over the chart

[przemyslawuk]

Hi,
I have a near 100% cpu usage when I move a coursor over any chart
(even basic price chart, negligible chart timing). When the coursor is
not moving the CPU usage is near 0.
I get this with crosshair and normal coursor.
I use  AB 5.10.
Is this normal?