Ok ! I found the solution, this line was the cause of the problem :
<FlashFxLightCastsShadows value="false" />
it has been changed on true after installing OIV sound mod, so entirely my fault, THX for your answers !
Ok ! I found the solution, this line was the cause of the problem :
<FlashFxLightCastsShadows value="false" />
it has been changed on true after installing OIV sound mod, so entirely my fault, THX for your answers !
@a63nt-5m1th thanks for these settings and explanations