Hi,
Same problem here, this feature used to work for me but now any change in any language affects the other language text fields…
I have not been able to fix this problem, but a temporary solution is to change the settings of the plugin so it is possible to change the way to enter the text in all the languages:
Settings > Languages > Advanced >
Under “Editor Mode” switch from “Use Language Switching Buttons (LSB)” to “Editor Raw Mode”.
Instead of having two tabs (for two languages) in the page editor, you will have only one page and you will have to enter the text in the field as:
[:en]Homepage[:fr]Page d’accueil
(for English/French translation)
This method is working for me…
I hope it helps until a solution is found to this problem!!