No additional Destructor damage on stationary objects

I’ve been testing the Destructor laser and realized that the stationary objects like turrets don’t suffer any additional thermal damage even though they are literarily bathing in it. Only direct hit causes damage. Or am I doing something wrong? With enemy ships it is working fine by the way.

It does, but only if you see it (so, turret shooting at you). Or I am doing something wrong.

No, nothing.

 

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Is it a bug? Looks like it is.