unity3d – Problem in the keyboard screen by Input Field TMP in the unity c#

Why when I select InputField TMP in the unity c# the keyboard screen appears correctly, but when I select another InputField TMP it disappears and I have to click on it again for it to appear. I want to keep keyboard screen when moving from one InputField TMP to another without disappearing

Why when I select InputField TMP in the unity c# the keyboard screen appears correctly, but when I select another InputField TMP it disappears and I have to click on it again for it to appear. I want to keep keyboard screen when moving from one InputField TMP to another without disappearing