Q: why can i not change the color of my personal calendar on my iPod nor on my iCloud account, the colors of the other agendas does change

hello,

the color of the personal calendar on the ipod can not be changed. when i change it by the correct procedure to do so, it comes back to the former color after 2 or 3 seconds.

the same happens when i try to change it using the icloud web based applications.

the color of the other calendars can be changed

strange things are happening here

help

thanks in advance