I have ne release of 10.3.0 installed and the "@!" command in debug does not work.  After issuing it on a given cobol statement, the program just continues on from where it initially stopped at my breakpoint.

@! in the debugger is skip to cursor line - was a line further in the program highlighted. I just attempted using @! in 10.3 using our sample tour and it seemed to work.

Still have this problem.  --  32-bit Extend runtime 10.3.0 on Windows 10.

Attached Clip2 - sitting on the MOVE WS-DEBUG-FLAG ….. statement

Attached Clip3 -  clicked on prior statement MOVE MONERIS-API … and issuing about to enter "@!"

Attached Clip4-  entered the "@!" and display correctly positions to that line

Attached Clip5-  entered the "s" command and control positions back to the line following the MOVE WS-DEBUG-FLAG line.

There is a problem here.

 clicked on prior statement MOVE MONERIS-API

the debugger can display a statement that has been executed, however it cannot go back to that statement and start again. The debugger step will continue onwards from the last point of execution or step once you've skipped ahead to a line of code that has not been executed.