I have just (un)-successfully restored to the previous version 1.24c, or at least I tried to.
At first I tried a direct restore, but that didn't work. Then I tried to uninstall, reboot and restore, but that didn't work either. No matter what I did, that darn version 1.24d just didn't want to go away (or rather kept on coming back).
So I got frustrated and kept on uninstalling, restoring, uninstalling, restoring..... until suddenly SDC claimed that it needed to reboot in order to uninstall. After the reboot I restored again version 1.24c but I got an error log.
I now have version 1.24 and three quarter installed. The error log clearly shows me restoring from 1.24c, but SDC stills shows 1.24d. WB import still didn't work, but at least it changed to a "neutral"-looking skin.
I then tried to restore to 1.24b (that was the version that didn't handle transparency on the flyouts). That went similar; now it showed 1.24c installed, but I had clearly the version with the transparency issues running. Strange thing there; WB import didn't work either!
I know for sure that the two previous version were capable of importing WB skins and I am at an absolute loss as to why restoring a previous version shouldn't fix this problem.
You know I don't believe that...
OK I admit, I lack the talent...