Hi @Tim_N_A ,
Can you use a .then statement to verify how much documents are updated? I suspect that number of documents updated is 0.
Btw if you expect this operations to be upsert you need to update an upsert : true.
You can also use async function declaration and await for a synchronous statement and place the output into a variable.
This operations are not complex there are probably something in the data or filter that doesn’t add up.
Thanks
Pavel