To add a little more information- (getting complicated )
In a situation where you may want to do extra editing to the Ps (TIF, PSD) layered file in Lightroom, then you may think you have to 'Edit a Copy with Lightroom Adjustments' - That would seem the logical step but it will flatten the image.
Instead-
You may find that if you send the layered file (with the extra Lr edits added) to Ps using 'Edit Original' you will not see those recent Lr edits in Ps, BUT when you "Save" the file in Ps it will return to Lightroom and 'take on' or re-apply those extra Lightroom edits you made.
If this does not happen automatically, the Library view may just need a prompt to update the preview- or- you can (in the Develop module) click on the topmost edit line in the History panel that will restore those recent Lr edits.