Field Events not working on mobile phones

I created a form with select dropdown field with a yes or no option, if you choose yes a text area will show up below. This was done using the events section, everything works on the pc but my problem is on mobiles phone's.

If you choose yes the text area don't appear, if you click on the dropdown again and choose yes again it will show. So you have to choose it twice.

Any assistance would be nice.

Hi evilsnoop,

Could you please let me know which browser did you use for testing ? and which OS ?

Also could you please test checkboxes/radios ? do they work fine ? or they have the same problem with dropdowns ?

Regards,
Max