OK Didier, here is how you can reproduce this bug.
I did more searching on it.
In fact Nautilus_2.32.2.1-0ubuntu4 does not crash when I move mouse cursor on it.
It crashes when I move my mouse cursor on my side panel (which set to autohide) and at the same time icons on the desktop flicker.
If I remove the autohide option from the panel, Nautilus does not crash anymore nor do the icons flicker.
So it is this autohide function of a panel that crashes Nautilus, every time mouse cursor wakes the panel.
OK Didier, here is how you can reproduce this bug.
I did more searching on it.
In fact Nautilus_ 2.32.2. 1-0ubuntu4 does not crash when I move mouse cursor on it.
It crashes when I move my mouse cursor on my side panel (which set to autohide) and at the same time icons on the desktop flicker.
If I remove the autohide option from the panel, Nautilus does not crash anymore nor do the icons flicker.
So it is this autohide function of a panel that crashes Nautilus, every time mouse cursor wakes the panel.