Ok, I think i explain bad, sorry my english, I make another example, I have a raw photo .CR2, i choose edit with photoshop, I work on it in PS and save it in .psd, usually automaticly the .psd appear immediatly in develop--> catalog, in the photo strip, beside the cr2, they stack together, but now no, when i save the .psd i can't find it, I find it only under library--> folder and not, as usually, also in the catalog, so i need go in library--> folder and move it in library--> catalog, for find it also in the develp--> catalog. is understable my problem?
By @Davide5C99
No, I don't understand it. I think you mix a few things up. How and where do you move it in Library - Catalog? I suspect you mean you need to add it to a collection in the Collections panel, not the Catalog panel. The collections in the Catalog panel fill themselves, you do not 'move' images in there manually (except perhaps into the 'All Synced Photographs' collection if you want to sync them).
What happens when you send an image to Photoshop depends on where you start. When you send an image to Photoshop, the resulting image will always automatically be in 'All Photograps'. That is because this is a smart collection that shows all photos in Lightroom. You will also always see the returned image in the folder where the original is stored.
If you select a normal collection and then send an image to Photoshop, then the returned image is added to that particular collection, but not to any other collection. The returned image is automatically added to a smart collection if it matches the criteria of that smart collection. So if you start from a smart collection that searches for raw images, then the returned image from Photoshop will not show there because it is not a raw image. By the way: Stacks do not exist in a smart collection.
So in conclusion: from what you say I can only conclude that everything works as expected. You just need to understand what you can expect and what you can't expect. If you want the image to be returned to a certain collection, so you will see it in that collection when you are in the Develop module, then select that collection first and then send the image to Photoshop.