Opened the charts today after the US clocks went forward this weekend and the final hour was missing (as shown in chart picture). The TPO chart should end with letters M & N. Period M (15:30-16:00), followed by the fifteen minute futures over run in N period (16:00-16:30).
My TPO chart below was set to stop at 16:30 but I have now had to change it to stop at 17:30 (as shown in settings below), to see the N period. The A period start was still correct though.
Note. I live in the UK, our clocks don’t go forward for another couple of weeks so our timezone offset has changed by an hour, but I do have my computer set to US Eastern to in theory prevent that issue, so not sure if that is relevant or not.
Chart missing the last hour:
Chart with the last hour shown correctly: