Sword saw not cutting properly

[Will Fearnhead]

My sword saw  starts to really struggle  once the blade is fully inside the cut,  it seems to be pulling away or getting twisted  from the  straightedge.
Does anybody else have this problem?

 

[demographic]

Never used one but have used chainsaws a good bit and after they have been sharpened a few times its common that people sharpen one side of teeth better than the other so the inexperienced can end up with a chainsaw thats cutting a curve instead of a straight cut.

Has the sawchain on your Sword been sharpened or is it new?