Minecraft 1.9 - New Command Block types bugging

I know it is not specefic, but take a look at the three new types of Command Blocks. They are very nice, but they are often bugging such as:

• When you toggle the previous output on OFF (O) and you open the command block again, there creates a bar and deletes it again.
• When you type something in the Command Block and after that you resize the window, the text that you typed is gone...