I have got four languages installed because I want to be able to switch between them every now and then. However, not all apps follow my settings instantly. When I e.g. switch from language 1 to English and back again, one app sticks to English. I have no individual language set for any app. The support site of the app says that the app's language depends on the global settings of the phone. But that doesn't seem to be the case. Even a reboot or deletion of the app's cache memory don't help.
Now I have realized that another app is stuck in language 2 without any obvious reason. Can anybody help?