RTSP stream crash Video player

When trying to play a RTSP stream (worked fine with Qt5) it crashes on Qt6, the app works fine when using file:// and http:// doesn't crash but didn't play.

Not sure this warning is related (does not show when using file://):
GLib-GObject-WARNING **: 11:14:08.927: invalid cast from 'GstRTSPSrc' to 'GstBaseSrc'

1 ??
2 QGstreamerMediaPlayer::uridecodebinElementAddedCallback qgstreamermediaplayer.cpp 557 0x7ffff056d413
3 g_cclosure_marshal_VOID__OBJECTv 0x7ffff008961e
4 g_signal_emit_valist 0x7ffff00a8724
5 g_signal_emit 0x7ffff00a8893
6 ?? 0x7ffff011acb4
7 gst_bin_add 0x7ffff01168a3
8 ?? 0x7fffdc2bc249
9 gst_element_change_state 0x7ffff0140769
10 ?? 0x7ffff0140e7d
11 ?? 0x7ffff0119c5c
12 ?? 0x7ffff016b5e6
13 gst_element_change_state 0x7ffff0140769
14 gst_element_change_state 0x7ffff01407af
15 ?? 0x7ffff0140e7d
16 QGstPipeline::setState qgstpipeline.cpp 277 0x7ffff0576db3
17 QGstreamerMediaPlayer::setMedia qgstreamermediaplayer.cpp 634 0x7ffff056e203
18 QMediaPlayerPrivate::setMedia qmediaplayer.cpp 217 0x7ffff0546ee2
19 QMediaPlayerPrivate::setMedia qmediaplayer.cpp 161 0x7ffff0547374
20 QMediaPlayer::setSource qmediaplayer.cpp 601 0x7ffff0547374
... <More>