DS 4.6 needing map and compass?

OK, just updated to D|S 4.6 tonight and tried a few things, including some old scenes.

An apparently random problem I had with (I think) all earlier D|S4 versions is getting worse — opening some old .daz scenes leads to not found errors for various bits and pieces, but the scenes all load perfectly in D|S3. After some experimenting, I've finally found what I think is happening: in a scene originally saved in (or containing an object originally saved in) a pre-3 version of D|S, of course the mesh/morph/etc files won't be saved to the /data/3_0/ folder, just the plain /data/ folder. Guess where D|S4 sometimes looks for some of these objects? In the /data/3_0/ folder.

I was getting this in 4.5 occasionally, and most often with the Optitex dynamic clothes (although most of the time they appeared to load properly and work), but now it's glitching on meshes I never had a problem with before, like Aiko3. Optitex clothes that glitched but worked now don't appear in the Viewport at all.

I've tried moving the relevant folders into the 3_0 folder; D|S4.6 now finds the objects, but D|S3 doesn't. I hope the solution isn't to copy the files to both locations, or only use those old .daz scenes in D|S3.

Before I put up a bug report, who else is seeing this, or anything similar?