Random timeout issues with large job volume
While this may not be related to this specific release, someone may have encountered this previously -
Sits with this style of error for 10 minutes or so...

Which printer class are you using?
Which printer class are you using?
Epson TM82III
I don't know if you are chunking your images into heights of no more than 2048 (1024 ideally) but that might be a good start
We only include one image and its much smaller then 1024
ImmediateNetworkPrinter
Is it best to call printer.WriteAsync in chunks of max 1024 bytes