Strange thing occurs when you hotreload scripts in playmode. The pathfinding starts to be super expensive. This is particularly annoying because our game supports hotreloading.
This bug appeared after upgrading to the 4.3.4, which uses burst. Maybe you’re now somehow storing data staticly, which doesn’t get cleared up on OnDisable.
I find this to be bit troubling, because it might also happening when reloading scenes?