As already said, if you have sold an image as RF (Microstock) you should not offer it as RM on any site.
If you want to sell an image that has sold as RF on any other site as RF that is fine.
Now Macro site buyers would not be happy paying a Macro price say $200 for an image they might find on microstock for $2, they would likely claim a refund if they found it, on the macro's like Alamy it could be 30 - 60 days for your money, on a "pay when paid" basis, after use you get paid, it is not a instant payment scenario, you get a purchase status like Purchased, Received, Cleared and Paid.
So if the image has downloads on a microsite but is no longer available, there is nothing stopping you uploading it to a macro site, but the buyers are different and are not looking for microstock.
The agencies do not like the same image on micro and macro, and some like PhotoShelter have restrictions, it would be seen as un-professional of a photographer to have the same image on micro and macro.
David