Created attachment 149520 [details] Steps to record SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** steps and error info please see the attachment. STEPS TO REPRODUCE 1. start a ftp service on my smart phone's file manager. 2. use dolphin open ftp url 3. drag file to download from ftp. OBSERVED RESULT failed to write file and No response, clicking on anything doesn't work EXPECTED RESULT work well SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: 5.24.5 (available in About System) KDE Plasma Version: 5.24.5 KDE Frameworks Version: 5.94.0 Qt Version: 5.15.4