Can't open/save files on Synology NAS: Mac M1

Hello,
I am on a mac Mini M1 and I am using DW v21.1 via Creative Cloud (so DW is running on Rosetta2)
I have found that it is not possible to open and even save a file from / to a synology NAS (DS218 +) via DW.
the error message that is displayed when I try to open a file located on the NAS is that it is not found and when I try to save a file on the NAS the error message is : an unknow error occured while accessing (path to folder on NAS)
With Photoshop and Indesign (latest version) it works without problems.
Via finder, I can explore my network drive without problems.
I have the same environment on a Windows 10 machine and I don't have this problem accessing the Nas via DW.
Guess it must be because of Dw running on Rosetta 2

Do any of you know this problem?

Thanks in advance.