KDE Plasma Version: 5.27.8 KDE Frameworks Version: 5.110.0 1. Exceed 0.01% of storage capacity in the trash 2. Set trash limit to 0.01% 3. Attempt to trash a file 4. Observe fake success without the file disappearing As described in Bug #475235 , Dolphin seems to report the issue all right. Interrogating Krusader with `QT_LOGGING_RULES="*kio*=true" krusader -d` reveals: kf.kio.widgets unknown@0 # CommandRecorder::slotResult: "The trash is full. Empty it or remove items manually." - no undo command will be added Error propagation up to the UI would be great for better user experience.