Waves WLM GUI bug upon insert in post-processing slot

There seems to be a variety of Waves GUI glitches in various plugins, but here is an example of how Waves Loudness Mater WLM Plus appear when I first insert it into the Post-Processing slot, and an example of how it should look which I can make happen after clicking another tab and going back.

WLM Plus seems to load OK in the master section slots or a clip effect slot, but is especially problematic in the post-processing slot.

OSX 10.9.2
WL 8.5.10
iMac 27"

Waves is aware that (only) certain of their plugins have this problem. But I have no recent news from them.

Thanks. Waves hasn’t released an update since April 9th so hopefully we’ll see a new version soon and the issues are resolved.