Alt tab broken since the last update to 18.04 LTS

Since my passage to latest version of budgie (updated everyday), alt tab is broken (nothing happen), even after startup, any idea to search where is located the bug/problem ?
Thanks a lot !

Just to make sure we are looking in the right direction: are you referring to the window previews applet, or the default alt-tab?

This is when the windows preview applet is activated that nothing happen.
If i desactivate the applet, classic alt tab work.

Could you see if these two shortcuts exist (in custom shortcuts):


If they do, could you run from a terminal /usr/lib/budgie-desktop/plugins/budgie-wprviews/wprv and see what happens (and what the output is)?