Hello All,
the game works fine on the PC and no problem on its monitor. Then I tried to connect the PC to the Samsung smart tv over the sharing software "Easy connection" by Samsung ( so no direct cable, the TV is far from the PC) and the mouse cursor is no more visible in the game window.
The mouse cursor is visible using other GOG game (Hell architect: prologue) or other software in the PC.

Any idea on how to solve it?