Not a bug
Contact Form 7 Conditional Fields plugin shortcode that is nested in the [group] shortcode is not available for translation on the advanced translation editor(ATE) screen. Here is an example:
To translate “foobar” using the ATE navigate to WPML → Settings. On the Custom XML configuration tab past the below code then click on the Save button.
<wpml-config> <shortcode-list>group</shortcode-list> </wpml-config>