How to avoid distortion of Light2D on the huge Sprites?

Hello everyone! Recently discovered such a cool thing as SpriteShape. I need to make more organic forms for islands, so I decided to change my Tilemap ground to the SpriteShape.

But i got unexpected problem:

Light2D distorted on the huge Sprites/SpriteShapes if your camera is tilted

• This problem is only in Perspective camera. I'm using 2.5D effect with camera 45º tilt. Looking from above (with 0º tilt), there are no problems.

• This issue is not affected on the small sprites (at least it is not noticeable to the eye).

• You can use tilemaps for huge surfaces to solve this problem. But in my case, it doesn't fit.

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Hope someone can help figure this out. I'll be very grateful.

Light 2D on the SpriteShape ground is going crazy:

Light 2D on the Tilemap ground works correctly: