This double 60 breaker WAS in the space above where it is pictures now. Power is cut and I moved it down. Is there a reason why I couldn’t do this? The reason I want to move it was because it would not seat properly—kept popping out but does fine here. This box is a house cut-off and feeds my workshop. Thanks.
There is no problem moving the breaker to another slot. I'd be more concerned about why it's not seating correctly in the first place. The exposed bus tab seems to be bent downward a bit and that whole right row is down a fraction. I'd pull out the 30 amp double pole breaker and check it out.
The only other issue is that you knocked out two spaces for the relocated breaker in the cover. Now you need a filler plug for the top two spaces.