Syncronisation not working

Hi i encounter an issue with my NCP installation

My NCP installation is running on an independant RPI 5

and i also made a NAS with another RPI 5 and OMV

both work together with the external storage module

for now everything is going fine BUT i can’t sync with the app more than 105 files it’s not a size issue because i tried with only pics and with pics + videos and it always get stucked at 105 files ( a direct copy to my smb server work perfectly)

i guess that there is a configuration i missed during installation but i can’t figured out what it is

Anyone already solved this issue?

thanks a lot