`KEYCODE_BACK` rarely causes the default wallpaper to appear, with `quickstep.RecentsActivity` transparent

Infrequently, when I input keyevent KEYCODE_BACK, [1] I see solely the default wallpaper. With setprop debug.layout true, [2] I am now able to see that it is rendering the selected activity. However, it’s rendering it invisibly:

Has anyone else experienced this? (I ask because I want to ensure that the initial report at issuetracker.google.com/issues/new is comprehensive, which corroborations assist with.)

Similar

It’s similar to:

My Environment

[ro.build.version.release]: [15]
[ro.build.display.id]: [FP5.VT2E.C.059.20250908]

  1. stackoverflow.com/revisions/26736655/2 ↩︎

  2. stackoverflow.com/questions/23799848/how-to-easily-show-layout-bounds-for-android-debugging#comment140836305_50618460 ↩︎