This must be a simple setting somewhere, but my searches have not found one. Messages such as:
Uncaught Exception: Client error: `PUT https://api.smartsheet.com/2.0/sheets/8176365615769476/rows` resulted in a `400 Bad Request` response:
{
"errorCode" : 1008,
"message" : "Unable to parse request. The following error occurred: Field \"predecessors\" was (truncated...)
... are not helpful. Any advice?