due to it is being vs. due to being

[One Heart]

1. An item was excluded due to it is being ambiguous.
2. An item was excluded due to it being ambiguous.
3. An item was excluded due to being ambiguous.

I prefer 3. I don't know what you think.

 

[perpend]

I prefer 2. I would consider it grammatically correct.

 

[One Heart]

I prefer 2. I would consider it grammatically correct.

Does this mean that three is not?

 

[perpend]

It would be really helpful to hear more about the context that involves this "item".