Saving images to Lightroom classic

I have been using PS and LRC for some time.  Sometimes when I save a TIFF in PS it will not automatically enter the the folder in LRC.  I can go to "finder" and drag into LRC.

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By @WheresRono

Please describe exaclty how you "send" a image from LR to PS and how do you go back to LR. Do you use the "Edit in Photoshop..." command in LR? After finishing your work in PS how do you save your work? Do you use the "Save" command in the File menu or do you use "Save As...."?

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Now the TIFF will not go into the LRC folder and when I drag from my "finder" it does not show up so can not be imported.

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By @WheresRono

In this case it seems that the image is already imported in LR through the background script of the "Edit in Photoshop" function. As @D Fosse wrote check your sort order.

You're not actually saving to Lightroom. You're just saving to a location on disk, just like any normal save in Photoshop.

The reason it appears in the Lightroom catalog, is that a background script tracks the file from "edit in Photoshop" all the way to the final save from Photoshop - and then adds it to the Lightroom catalog, at that disk location.

In other words, you don't need to import the saved file to the Lr catalog - the script is doing it for you, automatically.

For the script to run, both applications need to be open and running. If you close Lightroom prior to saving from Photoshop, the script stops, and then you have to manually import.

All that said, your sort order in Lightroom can sometimes trick you. The file may be imported, but end up at the end of the filmstrip, so that you don't see it next to the original.