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The NPN transistor in bottom left with grounded base is turning on in circuit simulator for some reason.
Can someone tell me why is this happening?
I know why the other 3 transistors are turning on. I am not using this circuit instead this one h bridge
Initially it looked like the simulator was showing the current flowing in the wrong direction. I removed your voltage source and ground, then added new ones and it worked correctly, the transistor was not turned on like in the simulation you posted. However, when I exported a link it started to behaved incorrectly as yours did.
Looks like it is a bug in the simulator.
