They definitely note if a person has sponsored more than once. Basically they will look at the first case to see if, in hindsight, it looks like a marriage of convenience. If not, no problem. Since you were married to your first husband for three years, and in particular since he has left Canada and gone back to his home country, it does not look like a marriage of convenience made just so he could come live in Canada.
Give proof that the first marriage wasn't a marriage of convenience in your new application - especially proof that he has left Canada.
Even if the first marriage was a marriage of convenience, if you can prove that you were sincere and were duped by your first spouse, the second sponsorship can still be approved.
I've seen cases on appeal where probably the first marriage was a marriage of convenience, and both partners were in on it, and yet the second marriage was still approved, so don't worry.