Paper Limit Sell Order not executing when expected

My limit sell orders are not executing in my paper account when the bid is over the limit price. For example, see the 2/5/20 chart for NVDA below showing it trading well over my limit price of $249.14.

I did notice only two seconds elapsed from the time that the NVDA buy order was filled and when the limit sell order was placed. I’m unsure if this could be causing a problem.

Has anyone come across an issue like this?