Why does the piano show some inconsistency on the six chords?

I noticed the C#6 on the piano shows C#, A#, E# and G and Db6 instead of G shows A when those chords should show the same which should have a G#, why please? Also, E6, F#6 show some different note of what should be, the rest of the six chords show ok. I added the chords with the search tool.