This will happen when the 8/24 GC card is accelerated. This will not occur when the 8/24 GC accelerator is turned off.
Background - We did not run into this when testing a pre-release version of the 8/24 GC card during the testing period prior to the release of Claris CAD 2.0v1. A change was made to the GC card before the release of the card, but after Claris CAD 2.0v1 was released. Make sure that you have the current version of the card and its software.