Hello! It’s a little hard to help with just the error in the message log since it just seems to be returning none for the variable, but you say you’re setting it.
Do you know when this started? What BPs or code you may have adjusted to cause this not to work. Usually, even if it seems unrelated, something changed that affected how the process is going.
I also suggest using breakpoints in the BP to see when you are setting the variable, and when it is being called by the Widget to see if it’s actually happening, even if your logic seems to make sense.
I could possibly trace back a little more if I could see your BP logic of how it is supposed to work but I think this is the most I can do now.
Hope this can help!