Bug or wrong configuration of the Sun Ray Server+DTU+17" and 24" screenres.

I have 2 DTU, one has a 17" screen with a resolution of 1280x1024 and the other DTU has a 24" screen with a 1900x1200 resolution attached. The setting of the Sun Ray server is configured only that registrated cards, can make an kiosksession to VMware View 4.6.
When I start the DTU's, there is nothing wrong. The correct screen resolution is displayed on the screen for both DTU's. When I put a smart card into the DTU that has a 17" attached, it's indicates the correct resolution. The problem starts when I hotdesk to the other DTU with the 24" attached to, the session what was builded on the 17" will be showed on the 24". So the the resolution is 1280x1024. With this action there's nothing wrong, because the kiosksession is made on the 17" and no disconnection is made, so this is a correct resolution at this point. When I pull the card out of the 24" DTU, the screenresolution will be still at 1280x1024. It's looks like the setting will be saved on the DTU. Only a restart of a DTU will turn back the good resolution.
When I do the same as the case before, but only I start at the DTU with 24" screen the kiosksession will start at 1900x1200. When I hotdesk to the Other DTU the kiosksession is still at 1900x1200, but only this time when I pull out the card out of the 17" DTU, The DTU will give the right screen resolution of 1280x1024
the DTU's are Sun Ray 3 Plus, it doesn't matter which DTU's I place, the problems seems like that the DTU will save the last screen resolution. I got 300 of these DTU's and try a lot of them, but still the same issue.
Note: with each case explained in this thread, the kiosksession will be started at first time, the kiosksession is not builded yet or has been disconnected.
This behaviour is with a standard installation and configuration of Sun Ray server software 5.1.2. No extra script is implemented. Also I tried the UTRESIZE script that I've found on this forum, but it didn't helped.
Is this problem a bug (known issue) or is this a wrong configuration of me? This is a big issue for me

I have also a lot of fun with different screens, so I walk the "hardwired" mostly when I run into my screen does not look like correctly.
utresadm -a -c MAC -t default 1280x1024@60 ... and then this is nailed, whatever you do with this box. Very effective especially for beamers ...
what you can set, utresdef is your friend, utresadm -p show all the devices overwritten in case you need to change for a new monitor. And finally utresadm -d -c MAC -t default clears the setting.
regards, thomas

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Name: sunray-servers
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Bug or wrong configuration of the Sun Ray Server+DTU+17" and 24" screenres.

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