VIAVI TestCenter: Why I get the warning "The test module port group size has changed since the last time..."

VIAVI TestCenter: Why I get the warning "The test module port group size has changed since the last time..."

This may happen in the following cases:   • When you try use a card with different port group sizes than the last card used with the same configuration. • When you are using a card, send all the ports to offline, change the speed of one or more ports of the card, then try to attach some ports of that card to the ports in the config. • When selecting a different card which has different memory size and/or CPU assigned.