Answer
Check the following against what the target environment should actually have (not what was copied over from the source): batch queue configuration; delivery/component differences (via the Installed Components window, since environments can legitimately be on different code levels); System Parameters, the PLSQLAP_ENVIRONMENT_TAB table, and IFS Connect configurations; License Management window information; the Connect server's listener port (Setup IFS Connect window); database backup method configuration and archive log parameters; undo tablespace names; and Oracle directory object names/paths. These commonly get silently overwritten by a refresh from a different environment (like Production) and need to be reset back to values appropriate for the target environment. If you have customized tables or environment-specific custom data, those need a separate verification pass as well, since this list only covers standard IFS configuration areas.