Hi all,
Look at https://josm.openstreetmap.de/ticket/13160
For me its dead simple to reproduce ... Still exists in current josm
with openjdk 8 and 11. I am on Linux but others have reported the
Problem on Windows.
I had the issue both on Windows and Linux (Windows 7 64Bit, Ubuntu
14.04, and Ubuntu 16.04). It did never materialize in any reproducible
way, sometimes after barely a minute, sometimes not on session over
multiple hours.
At the moment, everything is fine (on Windows 7 and Ubuntu 16.04). This
includes the setting that you have described.
Given that the JOSM core developers might face the same situation, I
suggest to collect as much information as possible, in particular the
Java environment, the active plugins, all their version and so on.
Could you check whether the problem persists even on a JOSM without any
plugins?
Best regards,
Roland