PromotionEngine - Custom Promotion not properly excluded

Hi,

I'm experiencing a problem with promotion exclusions. A custom promotion i created is not excluded from other promotions affecting the same lineitem when i run the promotion-engine or use the extension ApplyDiscounts. If i evaluate the lineItem using Evaluate(), only the one promotion that product should be eligible for is returned.

In my case i have one standard 10% off promotion and one 15% off for a specific brand promotion (which is my custom promotion), in my case the lineitem receives both discounts.

I am passing exclusion-level as a parameter, like this:

 var rewardDescriptions = cart.ApplyDiscounts(promotionService, new PromotionEngineSettings(){ ExclusionLevel = ExclusionLevel.Unit });

But it still returns both promotions, even though they both should exclude all other promotions.

GetFulfillmentStatus() in my processor returns Fulfilled with 1 exclusion. 

Does anyone recognize this?