To create timelapses with Lightroom, I take a bunch of pictures, develop one of them as I like, copy-paste the develop settings to all and then export a slideshow.
This, however, does not apply the dsettings to all pictures. I have to go manually through the pictures (just viewing them suffices). The old version will be shown for a second, then the version with the new settings appears. I think this is a bug, can someone confirm this or point out a workaround?