I have no idea why this happens, but in my portal I have two menu items which select a locale when clicking on them. They both select a different locale, the same one every time (item 1 opens a page in en-US, item 2 in nl-NL, every time I click them). But they only behave like ths when I'm not logged in.
For both these menu items I set their "Other settings - Link URL" option to "Page" which means they point to a specific tab in the portal. These two tabs are translated and available in all locales so the Effority menu should have no trouble locating these tabs in the selected locale.
What can be the reason for this? And what is there I could try to fix this behavior?