Debug stop working until restart

Hello,
I'am using node-RED in a container on a Pi.
I realised that debug information stop working after some time, I can no longer see in the debug windows any message. To fix the problem I have to restart the container.
Are you aware of this issue? Is there any solution?

Thank You

M.

I do recall seeing this behavior in one of the older versions, but i think the issues with the websocket connection have been fixed since then. What versions of nodejs, npm, and node-red are you using?

Here you are:

 pi@europa:~ $ sudo docker exec nodered npm --version
 5.0.3

pi@europa:~ $ sudo docker exec nodered node -v
v8.1.3

node-RED is 0.19.5