I would send the bug report off.
Take note of the number and then contact your local Archicad support and ask them to look at the bug number.
They may be able to tell you what caused the problem from info in the bug report.
If not then they can send it off to GS HQ for further investigation.
I would also make sure all your video drivers are up to date and you have the latest update for your Archicad version installed.
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Versions 6.5 to 25
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