Can i somehow force my unit to focus the enemy i have told them to?

[Yukeh]

My units are constantly, CONSTANTLY switching focus from the enemy i click on to whatever enemy is closest to them. This has lost me so many battles at this point i've resorted to seeking help for it.

Can i somehow force my units to actually focus the enemy unit i have told them to focus, rather than instantly switch target to whatever is closest to them? I can't even tell my units to back away and run from combat - if there's even ONE enemy soldier hitting a single one of mine, the entire unit stops their current action to engage that enemy unit in melee.

How can i stop this behaviour? At first it was just annoying but at this point it's game breaking - it's ruining entire campaigns for me as i lose battles i would've won easily if it didn't happen.

Cavalry flanked the enemy artillery? Oh but oops, there's ONE enemy spearman stuck on that artillery piece, from that spearmen unit roughly 400 meters further down the battlefield! The cavalry will now INSIST on turning their backs on the artillery and charging down to the thick of combat regardless of what i tell them to! I can spam click the artillery piece and they'll completely ignore it, favoring that unit of spearmen half the map away! Because there was ONE spearman that stabbed a horseman just as they charged into the artillery unit!

[Fryskar]

By clicking a few hundred times.
No, thats not a joke.
All units will fight back if attacked in melee unless you renew the order.

[BladeofSharpness]

Yes, this is why when you attack a lord with another and your lord get attacked, then he will switch target, while being hammered by the enemy lord.

So pleasant.

[Dog]

I love when a unit decides to stop moving or engage anything, even when being shot by ranged, just because they lost sight of a unit because of hills or trees. Its like they just decide the order to attack is nullified now that their target is hiding.

[an entire Roman legion]

this happens when a LOCKED FORMATION gets a single attack order