For future reference, when you Export Workspace as Image, zoom in until you can see the node names (it is okay if you can’t see the whole graph, it will still come through). This way when you paste to the forums the node names will show up.
Can you paste what the yellow error is, as well as the outputs for both Grids.Renumber nodes? I don’t have the Prorubim package installed.
It is interesting that the string inputs supposedly work but the number inputs don’t… is the storage type for grids stringtext? Maybe try adding String From Object to your number list to convert it before feeding the list into the grid renumbering node.