[JOSM] Message "Connected?" on some pedestrian crossings


I added some pedestrian crossings (highway=crossing) and placed them on the road they cross. In many cases (but not all) JOSM prints the message “Connected?” next to them. To solve it I already checked whether they are really connected to the road: they are. Neither the JOSM validator nor Keep Right! show problems with these nodes. Osmose shows a warning “Possible missing highway=traffic_signals nearby” at some of the affected nodes.
I have no clue what JOSM’s message means and how to solve it.
Can you please give me some advice?

Thank you in advance


Please add a screenshot, a link to such a node and the required parts of your statusreport https://josm.openstreetmap.de/wiki/Help/Action/ShowStatusReport

Such a node is for instance here: https://www.openstreetmap.org/node/3409349345#map=17/54.21884/10.88143&layers=N
For the other information please see my PM.