Error with rename grid

I made my own grid with nodes and I want to rename grids but it doesn’t work. I tried with nodes: categories - all elements of category - grids divide by orientation and in this node was error. I think something is wrong with my grids like dynamo doesn’t see it. I wanted to make a list and its the same results:

is the graph running manually and you don’t refresh?
Try to close and reopen or, copy paste the nodes into a new file

I paste the nodes into new file and it works, thank you!