Hi,
i try to write in bad englisch, sorry.
In Node Red Debug Modul all Message automaticly delete after 10 seconds. Where i can switch this off. That i only manual delete the Message.
its since last great update to Version 19.x
thx
There is no feature to auto delete information in the debug window in the Node-RED editor.
Any message that arrives will stay, until you either manually delete, or if you refresh the webpage.
So, i am a beta tester for this future, which i dont want 
damm , so i have a Problem. because 10 Sekonds are to short to analyse it.
Assuming you are talking about the right hand window in the Node-RED editor…
The editor runs in your browser. Debug messages come from the run-time server on your main machine, so if they are going missing it has nothing to do with Node-RED but rather the editor.
One post I found about this on the main Node-RED forum suggests that this can only be due to the browser webpage refreshing. Suggest you try another browser for a start.
Another post suggests that there is limited space for debug messages, and they auto-scroll off the page (not that I have ever seen this happen) when there are many messages from other flows.
If you have multiple flows with many debug nodes all running, perhaps you should turn a few of them off…
This is what the docs say
Note: the Debug sidebar can only show the 100 most recent messages. If the sidebar is currently showing a filtered list of messages, the hidden messages still count towards the 100 limit. If a flow has noisy Debug nodes, rather than filter them from the sidebar it can be better to disable them by clicking their button in the workspace.
I feel like I’ve had a lot more than a hundred messages but maybe not. OP look to see if you have debugs connected that are hidden. ie set the filter on the debug panel to all flows.
Thank you, that was it!
Since the update, a huge number of messages have appeared in another flow (debug messages, which were filtered).
Incorrect messages from a status change module, even when the debug module is deactivated, strange.
I have now deleted it and it works again - thank you!
Now written with deepl