Hi Nicolas,
Note that Flex support has been improved in TestComplete 8.10 which has been released today. I recommend that you update to this version, re-record the problematic part of your test and check whether the problem persists.
BTW, if an object can be found via its full name, but cannot be found via Name Mapping, it just means that the Name Mapping scheme is not reliable enough. If you make your Name Mapping scheme use the same recognition criteria which are used in full names, you should get the same recognition result. If some objects are created dynamically, it might also be necessary to call the Refresh method (for full names) or the RefreshMappingInfo (for aliased/mapped names) to make TestComplete "see" the changes.
