Shadowcalculation on huge openplanet maps

[Frankthetankmp]

In the last couple of days I built an 64x64 openplanet map in mp4.1. When I was done with the 57.000 coppers of map I wanted to calculate shadows but it does not work. It appears that maniaplanet has problems in calculating shadows in openplanetmaps with over 16k coppers.
In mp4.0 there was no problem. I have already built a map which was bigger than that there, in mp4 it worked.


So I wanted to ask if anyone still has mp4.0 + openplanet installed and could help me to finish this monster.