I started with Node -RED on a Pi3, up to now everything worked just fine. Started now to install Node-RED on a Pi4 in a Docker-container. First everything worked like expected, but now I have a strange problem: at a certain point the 'deploy'- button does nothing, and some of the nodes have still a blue dot. No error message, nothing.
When I reload the page, my changes are gone, and an old state of the nodes is present again. Same with a complete flow-sheet. Deleted the page, reload - everything there again.
I have to say, that I imported some of the flows from somewhere. Deleted also the config nodes- after reload everything appears again.
How can I get rid of this stuff?