With the exception of Login Items, the icons for both applications and documents in Finder/Recent Items will be generic when Labels X (v1.7 and APE v1.5.1) is enabled. Icons appear normally when Labels X is disabled and the system restarted.
I have been able to repeat this with the results as above on my DP 800, 10.4.1.
This is hardly a serious bug (if that is the case) as the (generic) icons still work properly. It is only their appearance that is in question.
Before alerting Unsanity, can anyone affirm (or refute) my conclusions?