Thanks for the comments. I know this can be unraveled. Just trying to be provocative with the “contradiction?” comment. But it would be helpful to me to discuss a little more detail about what’s happening. As the frames pass, the lightning bolts strike in B’s frame. What if B has two clocks...
I have not seen this exact configuration discussed. Observer A in middle of train. Observer B at station. Both A and B think the other is moving. Observer A synchronizes two clocks and puts one at each end of train. Lightning strikes both clocks stopping them when A passes B. B says...