Sorry about that!
Mode ignores setup changes itself at 12:00 AM which is 3 years old
Mode manager at midnight - #7 by Carl which is 2 years old
Less relevant Mode Manager (+Thermostat) not working - #9 by 256peach from last year
The code for the Mode Manager add-on has probably changed since these were posted but my point is that this has been an issue in the past and not completely solved.
I will probably run the firmware update later today.
Thanks for your attention to this.