gday guys, i'm running 12.1 with kde. I've installed cheese as i think it's the best web cam program; but the 'effects' isn't working, it just shows a blank screen; here's the output when i launch it from the terminal.

** (cheese:9921): WARNING **: Internal data flow problem.: gstbasesink.c(3638): gst_base_sink_chain_unlocked (): /GstCameraBin:camerabin/GstBin:video_filter_bin/ClutterGstVideoSink:cluttergstvideosink1:
Received buffer without a new-segment. Assuming timestamps start from 0.