Loading a skin the 1st time on a Standard (non-admin) logon was a little cranky. Acted like it was loading but afterwards the taskbar and StartMenu weren't skinned, didn't check the windows. Tried applying a couple of different skins, no luck. Logged off (not reboot) while a skin was "loaded", logged back in, the skin loaded as it should at login and changing skins worked fine.
I had applied the default theme to the user (as I typically do before updating WB) before going into the Admin user to deactivate/uninstall/reboot/install/reboot. Absolutely certain I had rebooted after the install.
Applied the default theme again and rebooted to see if it happened again, it didn't. Seemed to be a one-off.
Windows 10 Home (15063.rs2_release.170317-1834)
WindowBlinds 10.64 (046 - Windows 10 Edition) - 64 bit OS
Window titlebar blur features are enabled on this operating system
Wblind.dll 2017/08/18 11:08:50
Wblind64.dll 2017/08/18 11:08:55
Wbsrv.dll 2017/03/28 08:53:46
WB10Config.exe 2017/08/18 11:08:09
Wbload.dll 2017/04/29 12:24:51
Screen10.exe 2017/03/28 08:53:17