cannot see videos when playing on ubuntu 18.04 ; ok in edit mode

[strphistory]

hello, on ubuntu 18.04 i cannot see videos during gameplay (black screen on the video section), meanwhile on edit mode everything works perfectly. i installed all the qt libraries plus gstreamer. here is logging: QWidget::paintEngine: Should no longer be called QWidget::paintEngine: Should no longer be called

(ssp:6162): CRITICAL : 22:42:15.708: gst_vaapi_window_reconfigure: assertion 'window != NULL' failed

(ssp:6162): CRITICAL : 22:42:15.708: gst_vaapi_window_get_size: assertion 'window != NULL' failed emit New Game 1 emit New Game 2 emit New Game 3 emit New Game 4 emit New Game 5 QWidget::paintEngine: Should no longer be called QWidget::paintEngine: Should no longer be called

(ssp:6162): CRITICAL : 22:42:43.672: gst_vaapi_window_reconfigure: assertion 'window != NULL' failed

(ssp:6162): CRITICAL : 22:42:43.672: gst_vaapi_window_get_size: assertion 'window != NULL' failed QWidget::paintEngine: Should no longer be called QWidget::paintEngine: Should no longer be called

(ssp:6162): CRITICAL : 22:46:55.387: gst_vaapi_window_reconfigure: assertion 'window != NULL' failed

(ssp:6162): CRITICAL : 22:46:55.387: gst_vaapi_window_get_size: assertion 'window != NULL' failed Gtk-Message: 22:47:12.909: GtkDialog mapped without a transient parent. This is discouraged. slotMetaDataChanged "Resolution" QVariant(QSize, QSize(512, 384)) slotDurationChanged 609360 QWidget::paintEngine: Should no longer be called QWidget::paintEngine: Should no longer be called

(ssp:6162): CRITICAL : 22:47:38.059: gst_vaapi_window_reconfigure: assertion 'window != NULL' failed

(ssp:6162): CRITICAL : 22:47:38.059: gst_vaapi_window_get_size: assertion 'window != NULL' failed

[rgsl888]

Did you find any solution for this ?

[strphistory]

no, unfortunately I didn't find any solution, but I found another similar project called kiss strip blackjack that was so much simpler to get working at least for my skills: https://github.com/ksge/ksbj