Three stars with a red box around them?

Hello, first post here. Absolutely loving Resolve. So intuitive and I pick up most things easily each time I use the program.
Question I expect has been asked and answered many times - why has the icon with three stars appeared on this attachment and how do I remove it? The effect of it appears to be that every change I make to this clip affect all other instances of this clip in the edit timeline which has put a stop to this particular edit.
Thanks in advance.
Question I expect has been asked and answered many times - why has the icon with three stars appeared on this attachment and how do I remove it? The effect of it appears to be that every change I make to this clip affect all other instances of this clip in the edit timeline which has put a stop to this particular edit.
Thanks in advance.