Fedor Koleganov

Another option could be to use Find Node window, press Ctrl+F in the Network View, there you can find nodes by what value the parameter contains.

I would check the Log Viewer tab, warnings are written there and it might be easier to track the source nodes through that window.

Most likely you are just hitting the limit of 32bit integer with that multiplication which can result in negative numbers (last bit is a sign bit). You can cast the attribute to 64bit with Attribute Cast and it should behave as you expect.