Tom, I have a similar, but slightly different problem. I'm running OS X 10.10.5 (still a bit wary El Capitan) on a MacBook Pro with a US physical keyboard. I write text in a number of other languages, but I prefer to keep the keyboard flag set to the US, so that the keyboard types what it says on the individual buttons--otherwise it just gets too confusing. Yesterday, however, the keyboard flag started switching on its own accord, perhaps somehow context-based, though I haven't been able to discern the pattern. Any ideas on how to revert to a status wherein the flag stays where I've set it manually without then trying to get cute, but actually becoming very annoying? Thanks
PS: my own hypothesis is alluded to in the following chat: OS X Yosemite: Change the language your Mac uses, where I'm specifically referring to the section:
- Change the primary language: Drag a different preferred language to the top of the Preferred languages list. If OS X or an app supports the primary language, menus and messages are shown in that language. If it doesn’t, it uses the second language in the list, and so on. The language may also be used on websites that support the language.
Which implies that some of the apps/websites I use have suddenly stopped "supporting" languages other than English?