Some things I have noticed for the Skinners.....
I have no clue if these problems are inherent to the Enhanced Client or of they are introduced/exacerbated by the skins.
Going from Full Screen to Window Mode will cause several things to no longer be displayed. An example, If one targets something you get the Gump that identifies the current target with their Health Bard. If you go from Full Screen to Window Mode that Gump is no longer visible. If you return to Full Screen Mode the Gump is still no longer visible. A careful distinction here, if one retargets the same mob/pet/npc/pc the Gump is still not visible. If one targets a new/different object then the gump become visible and works properly.
Going from Full Screen to Window Mode (and there may be other factors) the Buff ICON window does not display the buffs. Example, I use Protect. While I BELIEVE (read as unreliable) that this may also happen when starting the client, it certainly does happen when you go from Full Screen to Window Mode. The Protect Buff is still active but is not displayed. No amount of moving the Buff Container will refresh the contents.
Also, would it be possible to sort the skins by date? It may in some cases make it easier to identify new updates.