Do you need to supply higher voltage to a solenoid if using a flyback diode

[Paul_KD7HB]

@runaway_pancake

You state it's a "5V solenoid", but you're using it conn'd to 'VIN' or describing a 12V supply to the breadboard.
That seems an issue.

It's an issue only if the duty cycle is excessive. Running a solenoid with a higher voltage pulse makes it operate much faster. Needs a cooling off period after each pulse.
Paul