Since few days all canals chat are not logged anymore (except the global channel)in logs.
Until now all Chat were logged in server.log but now only global channel is logged.
Not a big deal to admin servers correctly.
It is important for amdins to get complete logs
The problem occurs on Linux server too but the problem is present from the begining.
For Windows server it is a regression.
it would have been better to give the abbility to log all chat channel to linux server than to remove it from windows server.