[General] Cutscenes of campaign missions turn my game speed to fast

[raypack]

Help! Cutscenes of singleplayer maps and campaigns turn my game speed to Fast as soon as they begin and until they end, even if I put a trigger to set the game speed to Normal.
I want the game speed to be Normal and to remain normal. I thought it was just at launching the map but even mid-game and end cutscenes are played in Fast speed even though I've set the speed to Normal and have played it that way (after the initial cutscene).
I'm playing on patch 1.29.2. I will test this on some other patches like 1.21, 1.26, 1.28.5, 1.31 etc...

Could anyone help with this issue though?

Thanks in advance!