So I am moving from Photo Mechanic to Lightroom because PM does not do selective Ingest and I am having issues with the Second Destination not creating the Sub-folder like it does on the primary Destination?
It's creates an "Imported on [date}" folder instead?
I need it to create the folder I told it to in both locations - how do I do that?
There is no Second Destination, that I know of. If you are referring to the option to make a second Copy to: that is just for a backup of the images. I suggest you skip that option and just manually copy your folder structure over to your backup location.
Or ditch LR for ingesting and stick with Photo Mechanic!
Again, more lazy programming form Adobe.