I have recently started rolling out QuickBuild v1.2.2 to my build machines and noticed that configurations which have a "Label checked out code" step are no longer updating their associated Perforce labels.

In the build log output, the step shows as passing the necessary condition, executing and then completing, but the usual P4 labelspec output does not appear; also, the timestamps on the executing message and the completed message are exactly the same. The label step was working fine on QuickBuild v.1.1.4, and no changes in QuickBuild's behavior were observed during a Perforce server software upgrade a few weeks ago.