I believe I've discovered a small bug in the MicroStation WMS imagery raster attachment process. After choosing an image dataset at our server, it saves the *.xwms file ok, but doesn't attach it. If, however, I try to attach the *.xwms file as a separate step it works fine. I eventually discovered that if the folder name (or presumably any part of the path) contains a comma (",") it stops reading the folder name during the "attach" part of the "save and attach" step. Since the comma doesn't prevent the "attach" operation, only the attach portion of the "save and attach" operation, I think it should be listed as bug. MicroStation can obviously save the *.xwms file to that folder, and open it, but apparently it fails if done during the same step. In the image shown here, the folder name is actually "E:\Work\Squaw Creek, New Buffalo, Berrien Co".
We're using Power GEOPAK SS4 Priority Build version 08.11.09.885, MR 2.1.