Invalid JSON payload received

[mitch65]

first of all, thanks for this it's very useful.
unfortunately when trying to update something i've an error message :

"error": {
"code": 400,
"message": "Invalid JSON payload received. Unknown name "fieldList_" at 'insertion_order': Cannot find field.",
"status": "INVALID_ARGUMENT",
"details": [
{
"@type": "type.googleapis.com/google.rpc.BadRequest",
"fieldViolations": [
{
"field": "insertion_order",
"description": "Invalid JSON payload received. Unknown name "fieldList_" at 'insertion_order': Cannot find field."

and when looking at the google cloud project the google.ads.displayvideo.v1.InsertionOrderService.UpdateInsertionOrder generate an error with invalid argument.

"code": 400,
"message": "The value "campaignId=" is not valid for field "filter".",
"status": "INVALID_ARGUMENT"

any id why ? did anyone else experience this too ?

thanks.