3.1.7. Desk freeze after moving cuelists

Wholehog III 3.1.7 (2826)
DP2000
Luminex Gigaswitch

Hi, i had my console freezed up completely few days ago.
Just before the show i deleted cuelist from fader 10 and moved all my remaining nine lists one
step backwards on the submasters, that i could have grand master free to use. Few minutes after
that whole console frozes and every cuelist on my submaster are activated and at full.
I did hard reset to the console and loaded that same showfile. And again, after few minutes that
same problem showed up. Second reboot and i loaded backup which i had saved earlier that day and
everything worked fine after that.

Is possible that just moving those cuelists on submasters could have caused this freeze?
Has there been any known issues?
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