Lightroom sync pulling incorrect smart previews

I'm trying to sync a new catalog to my cloud-based Lightroom library. For some reason, some images are being pulled incorrectly and are being added from a different file with the same filename. Is there a way to fix this easily, or will I have to manually rename every file?

It seems to be creating new files for all the images it's pulling from the cloud, when I don't need it to do that; all the correct files are already on my computer. And because of the files with the same name, I think that's where it's getting confused as it's putting them all in the same folder as one image instead of the two separate images, with the same file name, as it should be. All the files with the same names are obviously in different folders and haven't caused any issues until now.

Is there a way to make it so when I sync, it still uses the original file location? I was hoping to have a year for each catalog, and re-sync my cloud based library to each new catalog each year. But if it will confuse files like this when I sync with cloud-based Lr, I'm not sure that's even entirely possible? I tried to add folders manually but it doesn't let me add them without importing images, and I don't want to import all the images - just tell it where to pull the synced images from.

I'm not sure I've explained it very well, but TLDR; I'm syncing Lr to Lr Classic and it's essentially merging two files with the same names into one. I need the separate images, synced, with the actual files kept in the original folders. I hope someone can make some sense of this and help me out.

Screenshots - 1 shows the incorrect image in the collection. It's from another image in the cloud library with the same filename.

2 shows the image it's taken it from.

3 shows the image it should be.

4 shows the image that's been duplicated into the mobile downloads folder created by Lr Classic when I tried to sync.