Here is one: Theta around 60. Advancing one day theta becomes 61 and P/L is around $2. That's wrong. Advancing one more day theta is 64 and P/L is 62. That is right.
I see. You seem lucky to get this good results, as I never could get very accurate numbers, so I thought this tool wasn't meant to be very accurate. Did you have accurate results in the past? Here is what I'm seeing right now, though not sure whether this is due to market being closed now and options having stale/wrong prices. ToS probably doesn't do very good job at price smoothing anyway, so the results will often be inaccurate, no matter how hard they try. Here is what I see right now, showing today's profit being $474.83, so it doesn't line up properly. When I make some adjustments to prices to line it up, then indeed the profit for the first couple days is even negative instead of positive. Anyway, try contacting them and see what they can do. They might've made some other changes that broke something, so they may continue fixing one thing and breaking another...