Game pieces flash in time to music

This is regarding Machine #1 but it has been upgraded to Leap 15.2, sound is a set of Axiom spleakers with a built in DAC.

When playing small games [kmahjong or kde patience card games] and also playing music [using Audacious] the cards or tiles of the games seem to flash in time to the music.
Would anyone say whether this is the game or a sound problem.
How would I go about finding out what cuases this?
Only happens when using Audacious music player.
Playing music on VLC does not affect these games.
Thanks

I will make a wild guess.
The game knows about “audacious” and taps in to the rhythm.

I waited until I had visual proof that this is happening.
Not sure if I have the videos posted properly.
Maybe I need some help with that , also. Should I be using something like pastbin?

These 3 videos show various flashing items.
I am just trying to get an idea of where I should start checking to solve this anomaly.

    • sound or display or kde plasma or what else??? and how to check the area in question.

[video]file:///home/data001/Video/flashing%20game%20music/MVI_8444.MP4[/video]

[video]file:///home/data001/Video/flashing%20game%20music/MVI_8443.MP4[/video]

[video]file:///home/data001/Video/flashing%20game%20music/MVI_8442.MP4[/video]*

Try to use ALSA output for Audacious, not Pulse.

ty Svyatko for your suggestion. I will look into it, but I think I have to have pulse running because of the built-in DAC in my speakers.
It has been a while [memory is a little faded] so I will have to check with the speaker mfg about changing this.