Yes, you have the same issue with the Fisher equation as described in

Given that you fix the steady state with a steady state file, you can simply ignore the collinearity. It’s not a bug in your model in this case.

Yes, you have the same issue with the Fisher equation as described in

Given that you fix the steady state with a steady state file, you can simply ignore the collinearity. It’s not a bug in your model in this case.