I don't think it's in trouble, but it does look a little upset at the moment. How long have you had it for? Has anything changed recently?
It might just be getting ready to shed. They'll do this from time to time to cleanse themselves of algae growth, detritus etc.
You might run carbon if you aren't already: leathers are good about emoting into the water, never dreaming that in a closed tank, goes around comes around.
After looking at this last picture I would definitely give the coral more flow. Just find a spot where the currents are the most chaotic and place it there. Once it's secure just leave it alone for at least a month and see how it responds.
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