Created attachment 142755 [details]
scenario of the problem

STEPS TO REPRODUCE
1. Start dolphin
2. Right click on a directory, choose 'Properties'

OBSERVED RESULT
Dolphin open a invisible window when viewing property of a directory. I'm using bspwm tiling window manager, thus when I right click the property, I can see an invisible window takes up half of my screen, the regular properties window is shown normally (see attachment). Note that this only occurs when viewing property of a directory, not on regular file.

EXPECTED RESULT
normal 

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Linux 5.14.14-arch1-1
KDE Plasma Version: not using plasma
KDE Frameworks Version: Version 5.87.0
Qt Version: Version 5.15.2 (built against 5.15.2)

ADDITIONAL INFORMATION

info of the invisible window by xprop:
_NET_CLIENT_LIST(WINDOW): window id # 0x3c00041, 0x2a00007, 0x2e00006, 0x2e0005f, 0x3400006, 0x42000b9
_NET_CLIENT_LIST_STACKING(WINDOW): window id # 0x42000b9, 0x3400006, 0x3c00041, 0x2e00006, 0x2e0005f, 0x2a00007
_NET_ACTIVE_WINDOW(WINDOW): window id # 0x2a00007
_NET_WM_ICON_NAME(UTF8_STRING) = 
ESETROOT_PMAP_ID(PIXMAP): pixmap id # 0x5200001
_XROOTPMAP_ID(PIXMAP): pixmap id # 0x5200001
AT_SPI_BUS(STRING) = "unix:path=/tmp/dbus-DYM3R6gYUW,guid=120d84a97b0d9a5796ffb6c761726431"
GDK_VISUALS(INTEGER) = 1422, 1924
XIM_SERVERS(ATOM) = @server=fcitx5
_NET_CURRENT_DESKTOP(CARDINAL) = 2
_NET_DESKTOP_VIEWPORT(CARDINAL) = 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
_NET_DESKTOP_NAMES(UTF8_STRING) = "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX", "X"
_NET_NUMBER_OF_DESKTOPS(CARDINAL) = 10
XFree86_DDC_EDID1_RAWDATA(INTEGER) = 0, -1, -1, -1, -1, -1, -1, 0, 6, -81, 61, 64, 0, 0, 0, 0, 0, 27, 1, 4, -107, 31, 17, 120, 2, -101, -123, -110, 86, 89, -112, 41, 32, 80, 84, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 20, 55, -128, -72, 112, 56, 36, 64, 16, 16, 62, 0, 53, -83, 16, 0, 0, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2, 0, 65, 85, 79, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0, 0, 0, -2, 0, 66, 49, 52, 48, 72, 65, 78, 48, 52, 46, 48, 32, 10, 0, -21
_NET_SUPPORTING_WM_CHECK(WINDOW): window id # 0x200000
_NET_SUPPORTED(ATOM) = _NET_SUPPORTED, _NET_SUPPORTING_WM_CHECK, _NET_DESKTOP_NAMES, _NET_DESKTOP_VIEWPORT, _NET_NUMBER_OF_DESKTOPS, _NET_CURRENT_DESKTOP, _NET_CLIENT_LIST, _NET_ACTIVE_WINDOW, _NET_CLOSE_WINDOW, _NET_WM_STRUT_PARTIAL, _NET_WM_DESKTOP, _NET_WM_STATE, _NET_WM_STATE_HIDDEN, _NET_WM_STATE_FULLSCREEN, _NET_WM_STATE_BELOW, _NET_WM_STATE_ABOVE, _NET_WM_STATE_STICKY, _NET_WM_STATE_DEMANDS_ATTENTION, _NET_WM_WINDOW_TYPE, _NET_WM_WINDOW_TYPE_DOCK, _NET_WM_WINDOW_TYPE_DESKTOP, _NET_WM_WINDOW_TYPE_NOTIFICATION, _NET_WM_WINDOW_TYPE_DIALOG, _NET_WM_WINDOW_TYPE_UTILITY, _NET_WM_WINDOW_TYPE_TOOLBAR
_XKB_RULES_NAMES(STRING) = "evdev", "pc105", "us", "", ""
XFree86_has_VT(INTEGER) = 1
XFree86_VT(INTEGER) = 1
Xorg_Seat(STRING) = "seat0"