Select `inspect` on your process and a breakpoint will be set at the first line of the react script (this is done simply to give you time to open the developer tools and to prevent Jest from executing before you have time to do so). Click the button that looks like a "play" ...
The snippet you've posted for config.user.inc.php will not work as expected as the $i is already 2 here and you probably want to modify the first server block. Indeed it's a bit unexpected, so I'm going to fix this, as a workaround you can set $i = 1; at top of your confi...
CICS is abending for an issue with MVS storage - ABENDAKEB/878. As part of abend processing it should issue message DFHSR0606