The button , presssure plate , (the p and the i in command-blocks)

Sometimes the button and the pressure plate are bugging , and we can't more click on it. With the "i" in command-blocks when you play on the ipad its showing you the invite of friends and somethimes its set the "i" in the command on somethimes not. And the last one , the "p" in command-blocks on iPad its eject you from the command-block and its reset the command, so your command isn't inside the command-block. Thanks for understanding me have a fine day. Herobryne