Thanks for contacting WPML forums support. I'll be glad to help you today.
1) I checked the issue using Chrome on an Android phone. Kindly check this video. (hidden link)
Please let me know the steps to reproduce the issue.
2) Could you please share your Debug information with me?
You can read a detailed explanation about it here. (http://wpml.org/faq/provide-debug-information-faster-support)
The debug info will give me a lot of information about how your site is configured.