Advanced Custom Fields Bug?

Hello,
it seems there is something wrong with the translation of ACF-Fields. They should be translatable out of the box, right? But if i save a value for a textfield for example, the plugin only saves the value for the current edited language into the database (e.g. [:en]englisch text).

If i then switch to german for example and change the text, the stored meta value will be “[:de]german text”. If i switch back to english, the textbox is empty.

Best Regards