OK, some info:
Apparently the “uncompressed” options don’t work. Even if the compression level is set to zero. I get the 141 error. Also the “uncompressed” options cause it to fail at ~2GB whereas the normal options cause a failure at ~4GB. Shouldn’t “uncompressed” mean write directly to the storage node, not a memory buffer? (That seems odd not to flush it though. Not every system has a RAM size that will match the size of the partition.)
Setting the image to use a “split” type allows it to complete the imaging process. Which means there is an issue with the RAM usage. Although, prior to 1.3.5 this worked without issue on these machines, did something change to require more RAM?