Migrated my wordpress site over to the main domain (site url). Cleared X cache out again. Tried 2 browsers in total (Chrome/Opera). Problem still exists.
Primary Language = English
Sec. Language = Thai
1) Can use nav menu switcher to go between 2 languages no problem (UPDATE::: !This takes you out of page edit mode = you can't translate)
2) Can use nav menu switcher to go to the secondary language, then I can use the Cornerstone flag button in the bottom right corner of the preview pane to switch BACK to the primary language. But using the cornerstone flag again, for the secondary language, fails.
Essentially, it appears the button in the preview pane for switching to secondary language is the only button that fails to switch to, or preview the secondary language page.
Currently editing through the pages menu and selecting the "translate page" button.
Let me know if I should take this up with WPML also.