I've always tested FTPGET using the passive (PASV) mode. Instead, it appears yours is specifying this (the PORT) command. Shockingly, there is a 10-minute(!) delay after this when the connection is lost. It does appear that the retrieve (RETR) command is not issued. But, is the FTP server happy about the PORT really? The connection is a TCP-level issue. Was there a network timeout or disruption? Did the server terminate the connection (instead of the BRX)?
Have you tried it in passive (PASV) mode? To use that, you have to edit your FTP Client Device settings in Do-more Designer, and check the "Use PASV Mode" in the Other Settings box.
I tested mine not in the PASV mode with the following results from DMLogger. The green is the portion that yours doesn't seem to get to:
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.028 ,"FTP disconnected!"
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.028 ,"Disconnecting FTP..."
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.028 ,"QUIT.."
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.027 ,"FTP data port disconnected!"
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.027 ,"Disconnecting FTP data port..."
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.026 ,"226 Successfully transferred "/RemoteDir/Contacts - Copy.txt""
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.026 ,"150 Opening data channel for file download from server of "/RemoteDir/Contacts - Copy.txt""
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.025 ,"FTP data port connected!"
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.024 ,"Connecting FTP data port..."
10.0.0.149 Port 29298(0x7272),01/13/25 15:44:00.023 ,"RETR Contacts - Copy.txt.."
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.953 ,"200 Port command successful"
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.953 ,"PORT 10,0,0,149,4,8.."
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.952 ,"250 CWD successful. "/RemoteDir" is current directory."
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.952 ,"CWD /RemoteDir.."
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.951 ,"230 Logged on"
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.951 ,"PASS [redacted].."
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.951 ,"331 Password required for greg"
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.950 ,"USER [redacted].."
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.950 ,"220 Please visit
https://filezilla-project.org/"
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.950 ,"220-written by Tim Kosse (tim.kosse@filezilla-project.org)"
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.949 ,"220-FileZilla Server 0.9.60 beta"
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.948 ,"FTP connected!"
10.0.0.149 Port 29298(0x7272),01/13/25 15:43:59.945 ,"Connecting to FTP server..."