A backup server error was seen on the target database and in the backup server log file (<SID>_BS.log) during the LOAD statement execution:
Backup Server: 18.104.22.168:  Error for database/archive device while working on stripe device '/<file1>'. Error writing to archive device /<file1>. Attempted to write 65536 bytes, 32768 bytes were written.This specific issue turned out to be caused by my target DB not having exactly the same size for the data or log devices.
I even found in some cases that the log device needed to be a tiny little bit bigger (we’re talking about 1MB bigger) than the source database.