Saving a flattened, 8bit file as JPG not working

PS CC 2024 v25.0.0. Mac Pro (Intel) Ventura 13.5.2

So this is a new one for me.  I have an action that has up until today (10/18/2023) has always worked flawlessly.  This action is used to create a copy of a multilayered file and save as JPEG. These steps in the action have never failed and has been used daily for years.

1. Duplicate first document

2. Image Size - opens the dialog for my input

3. Convert to Profile current document - sRGB for web presentation

4. Convert Mode - convert to 8bit

5. Flatten image

6. Save - opens the dialog so I can set the Quality I want to save, and preselects the directory where my edited, web images are saved.

This has always worked for literally thousands of images but today it decided that I could only save the file that was processed by that action as if it were a multilayered 16bit file - PSD or any of the other non-JPG options. I have tried running through all the steps manually as well but same result. I have attached one of the layered PSD files that is misbehaving.  I have also attached the PSD after the action was run but it will not save as JPG.  I know the Save a Copy exists but I cannot explain why this action worked for hours yesterday but refuses to allow me to save as JPG today.  I'm stumped.