I am not sure if this issue is only with my setup or if others have a similar problem. I have the latest firmware installed on the P1 and I believe the Handy App is also current.
I noticed if I switch the chamber fan on in Bambu Studio the fan runs and show that it is running, however on the P1 display and on the Handy App it shows the fan is not running. When I press the Chamber fan selector the fan will switch off and show as off, when selecting the chamber fan again it show the fan is running for a brief moment, I can hear the fan running and then the display changes to show the Chamber fan is off. The Chamber fan stays on and works as required it is just that the P1 display and Handy App incorrectly display the actual status of the fan.
This is from the Bambu Studio screen on my PC.
This is a screen shot of my Handy App
