1933005 - Remote Client Copy fails with RFC errors. RC: 10

Remote Client Copy log shows errors like

RFC error. System: <Remote system> Table: xxxxxxxxxx  RC: 10
connection closed (no data)

We see them in SCC3 and in the CC log /usr/sap/trans/log/CC00NNNN.SID

Also, in source system, each error is reflected in SM21 syslog with a Signal 8:

Q0  E Signal 8 received by operating system
Q0  2 Stop Workp. 0, PID xxx
Q0  E Signal 6 received by operating system
R0  H Error handling canceled

In ST22 we can see also a SYSTEM_CORE_DUMPED short dump related to each of previous errors. We will find a call to 'ab_itcompr' in the code section:

SYSTEM_CORE_DUMPED
Process terminated by signal 8.
...
...
>>>>>   call 'ab_itcompr' id 'IT_IN'  field IN[]
...
...
  

• Kernel 7.20
     
• Kernel 7.21

SCC9 SCC3 Table selection  Copier profile Source destination Table    Ins.     Del.     Upd. Func. ab_itcompr id 'IT_IN'  field IN SYSTEM_CORE_DUMPED Signal 8 RC: 10 remote , KBA , BC-CTS-CCO , Client Copy (For ByD issues select BC-TLM-CP) , BC-MID-RFC , RFC , Problem