UnrealEngine4 Android-Keyboard TextInput Issue

I do have a problem with an Android-Build from UE4. When I create a text field and then click on it I get the soft-keyboard, but unfortunately with an additional text field that is above the keyboard. (See screenshot) I’ve been looking for a solution for ages, unfortunately I find none. Even if you click on the top text-field you are unable to change the “edit-location” (it closes the keyboar if you reclick it) - its only possible in the editbox above the keyboard. (On iOS everything works fine) Does anyone know a reasonable solution? Such an input confuses every user. Especially when you have to enter a lot.

Thanks in advance