Structure Block Failing to export structures.

So, I am attempting to export buildings from one of my worlds and place them in another world, but I keep getting an error message saying, " We failed to export your structure" This did not begin to happen until 2 updates ago. It has my development team so behind because we use a flat world to make our buildings & we export them on our main world. 

We really need this addressed. 

 

Note: The screenshot provided shows me attempting to export one of my structures.

I do have a program that allows me to manipulate the structure block to allow me to export larger structures. I have checked and the program isn't why I cant export. It is definitely something on Minecraft's end. 

 

Thank you. 

Rivian XIV