-90* angle along x when instantiating onto runtime baked NavMeshSurface

Just as the title says.

So, i generate a bunch of planes randomly, they all work great, the nav mesh surface gets baked, and i instantiate my hero onto the map, and it strangely gets oriented (-90, 0, 0) rotation. I cant even rotate it live during run time , its just locked there. This only is happening when baking the nav surface at startup.

If i prebake a surface, there's no issues at all.

Any ideas?