Setting a trigger at a specific time, I adjust the field Hours and Minutes using the up/down arrows.
The values obtained are refused (hours: 2, minutes: 0). An error message mentions a failed validation marked in red. Nothing is marked in red.
Thanks for reporting this. We are aware of the requirement to enter hours with a leading zero if a single digit. This will be fixed in a future update.
For now, as you described, the workaround is to enter the value as a 2 digit input.