Looks like the new remesh sop doesn't carry the integer attributes of its input.
I does carries the vectors and floats, this is only an issue with integers(i havent tested rest of the types), I have attached a sample scene here.
"cluster" is my int attribute, you can see it is having unique value per piece before remesh and it becomes 0 after the remesh. however the old remesh does this well.
I have also included a workaround to use the remesh2.0 incase if anyone wants.
Anybody have faced the same problem?