Specify a frequency in the sine voltage source. It should look like this:Here it is. Ive tried the .tran command but I get 0V for the Vout node and 0 A for the power source as SINE 1V amplitude
Well, I think most of the problems you have faced were caused by some confusion regarding the different analyses.I thought it got a small ac signal in and Vout would vary until the difference between both terminals was as close to zero as possible (per the definition), and then it stabilized. But according to this its still an oscillating Vout. So it keeps "varying". I guess im confusing ac varying signal with a somehow unstable signal.
Only in the polarity of the current direction.I was measuring I(R1) instead of I(U1ut). Apparently there is a difference