<plt> May 13 00:39:40 sbbs synchronet: term Node 1 <plt> append key into keybuf: 4E (N)
<plt> May 13 00:39:40 sbbs synchronet: term Node 1 <plt> Executing external: /sbbs/exec/sexyz 14 -Telnet sz /mnt/disk1/dl/COCO/AGI/agi-xmas.zip
<plt> May 13 00:39:40 sbbs synchronet: term Node 1 <plt> sexyz: Synchronet External X/Y/ZMODEM  v3.0  master/23b741a1  Copyright Rob Swindell
<plt> May 13 00:39:40 sbbs synchronet: term Node 1 <plt> sexyz: !File skipped by receiver
<plt> May 13 00:39:40 sbbs synchronet: term Node 1 <plt> sexyz: !File Skipped
<plt> May 13 00:39:40 sbbs synchronet: term Node 1 <plt> sexyz: !0 Aborting Transfer (Sending ZABORT)
<plt> May 13 00:39:40 sbbs synchronet: term Node 1 !ERROR 11 receiving from socket 14
<plt> May 13 00:39:40 sbbs synchronet: term Node 1 input thread terminated (received 365 bytes in 35 blocks)

Not sure why this isn't happening for other sysops - perhaps plt was spying on the node?