Ransomware Protected Folders on Server Share

Real life scenario in example terms:

We have set the server installation of Endpoint Protection with a policy enabling Ransomware protection on all of the documents in \Example\

\Example\ is shared to certain users in the network as \\server\example

None of these authorized users can write or modify files in the share with  the Protection turned on .. not even a simple right click -> new text file .. and no 'blocked applications' are listed in the Teamviewer management.

As soon as we turn the Ransomware protection off, they are successful in simple operations such as creating a text file.

Why is this?  Can we not set ransomware protection on shared network folders?