I'm having some trouble with editing the geometry nodes added onto an object in Blender. The nodes work together to create a bridge, and it functions well, but at some point earlier today the nodes stopped being visible for the object in my node editor. Now, Blender treats the object as having no node editors on it, despite all the other telltale signs that the nodes are applied (there is a node modifier which is visible on the object, and beyond that the object still successfully looks like a bridge). This is what I see on my end in the node editor for the object. (https://drive.google.com/file/d/1YzQBA7pvmyTjRj_5topZ_93qArUmTud2/view?usp=sharing)
Troubleshooting has occurred but has been unsuccessful. I ensured that the "Use Nodes" checkbox in the shader tab was ticked, as I heard that was a resolution. I ensured that I was using the Eevee system, as that was also suggested. And I added a new "throwaway" node tree to the bridge object to ensure that nodes in general were still visible in the node editor; they were visib,e, but when I switched out the new throwaway node tree for the bridge node tree again the object disappeared entirely in the display (though the node tree was now visible). None of these troubleshoot options seem to resolve this issue.
If any of you could please take a look at this model and see what I'm missing here, I would greatly appreciate your guidance. https://drive.google.com/file/d/1_aYjNpWWxhKjRqi8jkpQMIir8x_L8mlZ/view?usp=sharing
TL;DR - I want to make edits to the geometry nodes on a bridge, but the node editor is not properly displaying the bridge's nodes. https://drive.google.com/file/d/1_aYjNpWWxhKjRqi8jkpQMIir8x_L8mlZ/view?usp=sharing