Hello !
I’ve been using Chirpstack for years and it has always been working perfectly !
Thanks to all the community for the work done ! 
Since some weeks, it seems like some of API request are not send to the nodes.
I use confirmDownlink with the python API. I’m 100% sure that the request are send to the server but I don’t understand where they can be lost.
Is there a log of the down link queue of anything where I can check where the package is drop ?