Issue with Multiple Buttons

It looks like I have a problem with floating when I use the simple button example but with 8 buttons instead of just one. I wonder if I maybe have to use different sized resistors in this case (instead of 8 10K each? Since it looks like by replicating the 1-button setup I'm getting 8 parallel resistors this way which probably alters the overall resistance. Or should this work and I made a mistake on my setup?

Thanks Mario

Oh - never mind - of course I've mixed up the connections...