Shadow rendering resets if I alt-tab?

[CroissantNinja]

I'm don't know if this is a bug, but every time I alt-tab, or minimize ShootMania in any way while I'm rendering the shadows for a map, it appears that causes it to stop the rendering process and the loading bar is back at zero when I come back. Do I have to keep ManiaPlanet on-screen in order to get it to finish rendering? I don't see why or how minimizing it would interrupt the rendering process...

[kalstrams]

I think it does not, at least, I've managed to compile at least one map by the said method,that's for sure.

[CroissantNinja]

I've tried many times with the same unfortunate result ;_;
However, if i go to windowed mode I can do stuff in other windows as long as I don't minimize ManiaPlanet, so that's a temporary solution.

[kalstrams]

Oh, yes, I forgot to mention, I play on setting WindowedFull. It gives you fullscreen, easy Alt+Tab.
And for me it gave even boost in FPS.