Syncthing watcher fails on folder with error while traversing: permission denied, but scan/sync works fine in Docker

[chaos]

I’m wondering if this could be an inotify limits issue:

partial success on increasing inotify limits on synology NAS

I am using a synology NAS (DS920+, DSM 7.2) and run synthing (1.23.7) from a docker container. Already a while ago I solved the inotify limit warning by running this script at boot: sh -c '(sleep 120 && echo 204800 > /proc/sys/fs/inotify/max_user_watches)&' More recently the warning came up again, but strangely, only for some of the folders! I manually ran the boot script again (log says successfully), but without resolving the warning. Any idea what might be going on here? Side question: it …