6th October 2016, 3:05
A bit more info, FYI.
This morning, in one of my Maui VM's [which run as Guests in VB in my Host Maui OS], i found i could make the Activities Manager wallpaper thumbnails return simply by, in each respective Activity, changing the current desktop wallpaper --- then the A/M seems to "notice" it & show it ok. Encouraged, i then tried that same trick in my "real" Maui OS... but sadly it made no improvement.
Of course, my real Maui still has no activityswitcher_wallpaper_preview.kcache file in ~/.cache/ anymore [it's still sitting in the waste bin]... i wonder if i should undelete it then repeat this trick?
This morning, in one of my Maui VM's [which run as Guests in VB in my Host Maui OS], i found i could make the Activities Manager wallpaper thumbnails return simply by, in each respective Activity, changing the current desktop wallpaper --- then the A/M seems to "notice" it & show it ok. Encouraged, i then tried that same trick in my "real" Maui OS... but sadly it made no improvement.
Of course, my real Maui still has no activityswitcher_wallpaper_preview.kcache file in ~/.cache/ anymore [it's still sitting in the waste bin]... i wonder if i should undelete it then repeat this trick?