Now I managed to resovle my graphical port problems when moving from FP 2.x to FP 3.1
But now I have a new issue where collisions do not always occur and some times it takes a while for Farseer to compensate and resolve the issue where several polygons are penetrating each other.
I tried to recompile Farseer without CCD but it doesn't improve the situation.
Is there anything else I should try to improve the situation?
I've read that using too large units can cause problems and at the moment my polygons are 300px X 300 px which is not very good for FP 3.1 as I understand it but I don't think that this issue is caused by that problem.