A Microsoft file hosting and synchronization service.
Dear Ldaxford,
This situation could be due to some settings in your Sharepoint library, so, I will explain to you, how verify and deactivate those most important features that could create a conflict with Onedrive client:
1.- Versioning settings: So, in any internet browser open your SPO site > Open the Document library > in upper-right of screen click on "Gear" button > click on "Library Settings" there you will see several configurations, so, click in "Versioning settings", inside there are two important configurations and they must be configured like this:
-Content Approval = "No"
-Require Check Out = "No"
So, save your changes.
2.- Back to Library settings > in "Columns" section, you should verify if you have a "Required" column on the list, if is it, that column will show you your synced files in "Read only" mode, so you have to edit the column and untick Required option and save.
3.- Limited-access user permission lockdown mode: Browse to the Site Settings that you want to configure, In the settings choose > Site collection features under the > Site Collection Administration heading.
Find "Limited-access user permission lockdown mode" and if its enabled, disable it and verify the behavior.
See all limitations in below Microsoft support:
https://support.microsoft.com/en-us/office/inva...
Regards,
Renzo.