I am having problems with Stack Merge ... showing what appeared to be alignment problems but it looks more like ‘leakage’ through upper layers. I’m using 6 image from a tripod at varied distances ... at f2.8. (NOTE: A one-shot F16 captures fine, shown below, without the leakage.). Here are comparable images ... look for the leaf leakage in the second shot, in the black vertical rail posts, with background leafs showing through. What’s happening here? How to correct it? Program bug or me? This is on an iPad Pro with iOS 12.2. Thanks.