Brown Spots

So if anybody here recognizes whats going on here I would appreciate some input. Only problem I every really had was mites 4 months ago this does not appear to be the same to me.
There are brown spots on several leaves there are only 2 of the wilted looking leaves which are lower leaves also.
This plant is Tangerine Dream and has been the only plant effected, this morning there is another showing the same.
Thanks,

Snew

Looks like a potassium def.

Thanks Chem Dog