Duplicate collections LRCC

[carolinet21034611]

Hi,

I'm using LR classic and LR CC.

I have 4 LR classic catalogs on my drive.

I only synchronize one of them with LR CC, the catalog named 2018-2021.

I  don't understand why I have duplicates and sometimes up to 5 times the same pictures in my LR CC ( Web )

I can see I have 2 libraries which seems not totally right. Lightroom Library.lrlibrary AND Lightroom Library 2.lrlibrary

Thank you for your help. 

[selondon]

Have you in the past synced the other three catalogs?

[carolinet21034611]

I don't know anymore. Everything is confused at the moment 😞 thank you