Copy name missing

[Gunzel]

When I synchronise a folder, I find the copy name gets deleted. I guess there's a simple solution but it's escaped me so far. I am using the latest version of Lightroom Classic on my desktop with Windows 10.
Thank you
Paul in Australia 

[Rob_Cullen]

Hi Paul, Can you describe more about "copy name"?  Are you referring to Virtual Copies that might be "Copy 1", "Copy 2", etc?

Are you simply importing new files in a folder by [synchronize folder], or trying to correct 'Missing' photos?

This blog from the Lightroom Queen may be helpful-

Dangers of Synchronize Folder

Rob in Australia 🙂

[Gunzel]

Thanks Rob

I use a copy name mainly because my entire collection was professionally scanned and I got three copies of each frame; small, large and tiff. I also have a colour code for each type. 

But when I make any changes and the files are imported again I lose the "copy name" but all other information remains intact. 

[Rob_Cullen]

TBMK 'Copy Name' is metadata stored only in the Catalog. It will only be used if you Export derivative files with a Rename function that includes the 'Copy Name'.

Am not sure what you mean by "imported again"!  Re-importing files (that have been deleted from the Catalog, or are 'missing') is never recommended.