Height of panels aren't saved

[PPete2]

I'm using JOSM v18969 on Windows 10, installed with Windows-setup file.

The annoying problem: The individual heights of the panels on the right side aren't saved/remembered. If I start JOSM the next time, each panel seems to be of about equal height, what is different to its heights I used before. So I'm forced to rezise the panels after each start of JOSM.

=>

[GerdP]

I can reproduce this when I write protect the file %APPDATA%\josm\preferences.xml
The effect is that JOSM creates a write protected copy of the file in preferences.xml_backup and a new file preferences.xml_tmp on start up.
I see lots of error messages on start up and Help|Status Bericht shows

Last errors/warnings:
- 00000.312 W: extended font config - overriding 'filename.Myanmar_Text=mmrtext.ttf' with 'MMRTEXT.TTF'
- 00000.315 W: extended font config - overriding 'filename.Mongolian_Baiti=monbaiti.ttf' with 'MONBAITI.TTF'
- 00006.084 W: Fehler beim Speichern der Einstellungen in '<josm.pref>\preferences.xml': java.nio.file.AccessDeniedException: <josm.pref>\preferences.xml_backup
- 00006.087 W: Fehler beim Speichern der Einstellungen in '<josm.pref>\preferences.xml': java.nio.file.AccessDeniedException: <josm.pref>\preferences.xml_backup
- 00006.090 W: Fehler beim Speichern der Einstellungen in '<josm.pref>\preferences.xml': java.nio.file.AccessDeniedException: <josm.pref>\preferences.xml_backup
- 00006.372 W: Fehler beim Speichern der Einstellungen in '<josm.pref>\preferences.xml': java.nio.file.AccessDeniedException: <josm.pref>\preferences.xml_backup
- 00006.735 W: Fehler beim Speichern der Einstellungen in '<josm.pref>\preferences.xml': java.nio.file.AccessDeniedException: <josm.pref>\preferences.xml_backup
- 00007.337 W: Fehler beim Speichern der Einstellungen in '<josm.pref>\preferences.xml': java.nio.file.AccessDeniedException: <josm.pref>\preferences.xml_backup

If this doesn't solve the issue please attach your status report here.

[PPete2]

I uninstalled JOSM, completly deleted its %APPDATA%\josm\ folder and reinsalled JOSM and all former used Plugins. Now the heights of the panels are kept - very good!