Multisim and Ultiboard

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positive feedback of a Voltage Controlled Voltage Source component behaves as it would be a negative feedback (no singing)

I don't understand:

 

I have created a simple feedback on a voltage controlled voltage source component to test the negative feedback.

But as you can see I missed the gain and instead of -1000 I put +1000 into the Voltage gain.

 

I was very suprised when the circuit worked as if there was a negativ Voltage gain and not positive in the gain field.

The circuit should have behaved as an oscillator. When I changed the +1000 to -1000 the circuit continue the same behaviour.

 

Can somebody explain me how it could be?

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