SUMMARY Demonstrative video: https://youtu.be/YFic0U8QPa8 In that video I first demonstrate that copy+paste and cut+paste works perfectly fine. Then I connect an android device and open up the location once (this will not work if you do not open the device location) and do the same copy+paste and cut+paste demonstration again. The program freezes. The transferred files don't have to be on the android device. STEPS TO REPRODUCE 1. Open dolphin 2. Connect an android device in file transfer mode 3. Open the android file location once 4. Cut a file from a location to another location that already contain that file OBSERVED RESULT Dolphin freezes for a good minute EXPECTED RESULT No freeze should happen SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux, updated on 2020-04-30 (available in About System) KDE Plasma Version: 5.18.4 KDE Frameworks Version: 5.69.0 Qt Version: 5.14.2
This seems to have been fixed somewhere along the line.