No, most likely not. I'm getting alternative heights of up to 41770 in my node. >200 blocks is quite the large difference. Are private pools causing the divergence?
Yes, private pools may very well be to blame for the incessant forking. In fact I wonder if this is not an attempt to execute a 51% attack? We don't currently have to worry since pool.dero.live now has >51% of the network hashrate, but that is not the usual case.