This has been happening for several months, with the last 7.0.5 being the last version that worked. I’ve got a half dozen websites with this exact problem and am now considering replacing the plugin completely as it seems they’ve abandoned WPML compatibility completely.
Just adding to this, it does look like this a v7.1 issue. Reverting back to 7.0.5 fixes the problem. The debug logs suggest there’s some missing elements in the new version of the plugin.
