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Why this happen im proteus 8.12

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Skystar2.0

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Hi there
Why one of the LEDs that is not connected to the ground is on ?
It seems that relay is passing current when it’s open
 

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Simulators do strange stuff... In the properties of the relay, you'll need to change the off resistance to a much higher value..

That wouldn't happen if you use current resistors for the LED's..
 
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