iOS - Placing Texture2Ds in Array cause Memory Leak?

Hello, I have a bunch of dynamic texture2Ds that are being created during run-time. They are then placed in an array. When I destroy the textures, and release them from memory on iOS, the memory isn't fully released, and this only seems to be happening when I place these textures in an array before hand. I also clear and resize the array, as well as destroying, and nulling the array. So my question is; placing texture2Ds in an array, will this cause memory issues/leaks of some kind on iOS? If so, how do I resolve this issue? (I'm using the builtin arrays - .NET). Thanks.