Ok Zé helped me build the pack for…

Ok, Zé helped me build the pack for 4.0, then when into my 3.9.2 site and upgraded to 4.0 but there’s a hitch. The 3.9.2. was installed with English as admin UIUI UI is an acronym for User Interface - the layout of the page the user interacts with. Think ‘how are they doing that’ and less about what they are doing. language but Gaelic (gd) as the public UI language. According to Zé, if I go to Settings > Site language I should be able to switch the admin UI language. It *does* offer Gaelic but when I select it and save, it tells me (in Gaelic) that the settings have been changed. If I reload the page, the setting has reverted back to English. Any suggestions on what I’m doing wrong?

#l10n, #request