JOSM not saving the position of right side pannels

Hi, please,

JOSM is not saving the heights (and widths) of right side pannels. It never worked for me, for any JOSM versions, even if fully re-installed. I suspect it happens with Windows, becasue I know fellows that use Linux and usually have their pannels saved (but I can't dismiss Windows-v7).

For GUI it saves OK last values:

gui.geometry    x=-8,y=-8,width=1296,height=1010
gui.maximized   true

But not for the right side pannel:

validator.geometry         x=481,y=403,width=661,height=235

Moreover, not availlable (just empty) for:

propertiesdialog.geometry
selectionlist.geometry 
relationlist.geometry

For any value I set for those, yes it saves, but does not work when opening new session:
they always open with the same default heights, that is, with too much height for "validator" (used only in the end of session) and too short for "properties" (used constantly).
Even though the values still are there as they were personally set by me.

So I have to manually drag down the pannels again every new session... since 5 years...

So, How to save personal adjusts of heights (and widths) for right side pannels?(in Windows)
Thank you in advance.
Sérgio - openstreetmap.org/user/smaprs