I have the same problem in 8.10 beta. I use only 4 workspaces (2x2). The workaround mentioned above also does work for me.
The computer I am using does not use the ATI Radeon drivers so I am assuming that is not the cause. Also I did not move the bars around so that is unlikely to be it as well.
One thing that I did do prior to starting compiz initially was I renamed the workspaces. It is probably unrelated however compiz did not keep the names instead refering to them as "Desk 1" through "Desk 4"
I have the same problem in 8.10 beta. I use only 4 workspaces (2x2). The workaround mentioned above also does work for me.
The computer I am using does not use the ATI Radeon drivers so I am assuming that is not the cause. Also I did not move the bars around so that is unlikely to be it as well.
One thing that I did do prior to starting compiz initially was I renamed the workspaces. It is probably unrelated however compiz did not keep the names instead refering to them as "Desk 1" through "Desk 4"