I’m using an Anycubic Kossel Linear Plus and Octoprint does as it should up until the end. The print finishes, the effector homes, both the bed and the hotend shut down, but the power supply continues to run. It’s not waiting to cool down, as the print could be finished for hours and the fan will continue to run. It is only when I home the effector once again that the fan will finally stop.
I’m running the most current Octoprint build on a recently purchased Pi B, the same setup I run on my Tornado where the power supply fan will/does stop after printing.
Related topic...sort of. When using my iPhone to control Octoprint, the control functions are missing from the web browser, thus rehoming the print head remotely is not possible. The camera image is there and live, but the control buttons are missing.