Video artifact on blur effect

Hi all!
I set mutter_around to get the blur effect on windows but ran into the artifact shown in the video. This artifact only disappears when the window is refreshed (in this case, it’s the console cursor blinking).


Tried video via OBS. But when you start OBS, this artifact disappears.

vainfo: VA-API version: 1.13 (libva 2.13.0)
vainfo: Driver version: Mesa Gallium driver 21.3.7 for AMD VERDE (DRM 2.50.0, 5.15.28-1-MANJARO, LLVM 13.0.1)
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileNone : VAEntrypointVideoProc

Does anyone have any ideas?