I have three Linux systems with 5 directory hierarchies synchronised between all three systems. Everything works OK except for one directory on one system.
I spotted the problem recently when I added a sub-directory to the directory in question and it didn't appear on one system. As I said everything else works as expected, all other directory hierarchies synchronise as expected.
There are no messages from syncthing about the directory that doesn't synchronise.
Synchronisation of this directory works fine between the other two systems.
I have just tried adding some files to the directory on the system where it doesn't synchronise, they don't get synchronised either.
How can I diagnose this?